diff --git a/Changes b/Changes
index e2ad535ea..824cd3d65 100644
--- a/Changes
+++ b/Changes
@@ -6,6 +6,7 @@ indicates the contributor was also the author of the fix; Thanks!
 * Verilator 3.700***
 
 **   Add --coverage_toggle for toggle coverage analysis.
+     Running coverage now requires SystemPerl 1.301 or newer.
 
 ***  Add /*verilator coverage_on/_off */ to bracket coverage regions.
 
diff --git a/src/V3AstNodes.h b/src/V3AstNodes.h
index 7c76a0603..255f6a5bc 100644
--- a/src/V3AstNodes.h
+++ b/src/V3AstNodes.h
@@ -1011,15 +1011,15 @@ struct AstCoverDecl : public AstNodeStmt {
     // Children: none
 private:
     AstCoverDecl* m_dataDeclp;	// [After V3CoverageJoin] Pointer to duplicate declaration to get data from instead
-    string	m_typeText;
+    string	m_page;
     string	m_text;
     string	m_hier;
     int		m_column;
     int		m_binNum;	// Set by V3EmitCSyms to tell final V3Emit what to increment
 public:
-    AstCoverDecl(FileLine* fl, int column, const string& type, const string& comment)
+    AstCoverDecl(FileLine* fl, int column, const string& page, const string& comment)
 	: AstNodeStmt(fl) {
-	m_text = comment; m_typeText = type; m_column = column;
+	m_text = comment; m_page = page; m_column = column;
 	m_binNum = 0;
 	m_dataDeclp = NULL;
     }
@@ -1036,7 +1036,7 @@ public:
     void	binNum(int flag) { m_binNum = flag; }
     int		binNum() 	const { return m_binNum; }
     const string& comment() const { return m_text; }			// text to insert in code
-    const string& typeText() const { return m_typeText; }
+    const string& page() const { return m_page; }
     const string& hier() const { return m_hier; }
     void hier(const string& flag) { m_hier=flag; }
     void comment(const string& flag) { m_text=flag; }
diff --git a/src/V3Coverage.cpp b/src/V3Coverage.cpp
index 6e267e8fa..d8060ea6c 100644
--- a/src/V3Coverage.cpp
+++ b/src/V3Coverage.cpp
@@ -74,7 +74,7 @@ private:
     }
 
     AstCoverInc* newCoverInc(FileLine* fl, const string& hier,
-			     const string& type, const string& comment) {
+			     const string& page_prefix, const string& comment) {
 	int column = 0;
 	FileMap::iterator it = m_fileps.find(fl);
 	if (it == m_fileps.end()) {
@@ -83,7 +83,11 @@ private:
 	    column = (it->second)++;
 	}
 
-	AstCoverDecl* declp = new AstCoverDecl(fl, column, type, comment);
+	// We add the module name to the page.
+	// Someday the user might be allowed to specify a different page suffix
+	string page = page_prefix + "/" + m_modp->prettyName();
+
+	AstCoverDecl* declp = new AstCoverDecl(fl, column, page, comment);
 	declp->hier(hier);
 	m_modp->addStmtp(declp);
 
@@ -207,7 +211,7 @@ private:
 		if (!nodep->backp()->castIf()
 		    || nodep->backp()->castIf()->elsesp()!=nodep) {  // Ignore if else; did earlier
 		    UINFO(4,"   COVER: "<<nodep<<endl);
-		    nodep->addIfsp(newCoverInc(nodep->fileline(), "", "block", "if"));
+		    nodep->addIfsp(newCoverInc(nodep->fileline(), "", "v_line", "if"));
 		}
 	    }
 	    // Don't do empty else's, only empty if/case's
@@ -218,9 +222,9 @@ private:
 		    && nodep->fileline()->coverageOn() && v3Global.opt.coverageLine()) {	// if a "else" branch didn't disable it
 		    UINFO(4,"   COVER: "<<nodep<<endl);
 		    if (nodep->elsesp()->castIf()) {
-			nodep->addElsesp(newCoverInc(nodep->elsesp()->fileline(), "", "block", "elsif"));
+			nodep->addElsesp(newCoverInc(nodep->elsesp()->fileline(), "", "v_line", "elsif"));
 		    } else {
-			nodep->addElsesp(newCoverInc(nodep->elsesp()->fileline(), "", "block", "else"));
+			nodep->addElsesp(newCoverInc(nodep->elsesp()->fileline(), "", "v_line", "else"));
 		    }
 		}
 	    }
@@ -234,7 +238,7 @@ private:
 	    nodep->bodysp()->iterateAndNext(*this);
 	    if (m_checkBlock) {	// if the case body didn't disable it
 		UINFO(4,"   COVER: "<<nodep<<endl);
-		nodep->addBodysp(newCoverInc(nodep->fileline(), "", "block", "case"));
+		nodep->addBodysp(newCoverInc(nodep->fileline(), "", "v_line", "case"));
 	    }
 	    m_checkBlock = true;  // Reset as a child may have cleared it
 	}
@@ -245,7 +249,7 @@ private:
 	nodep->iterateChildren(*this);
 	if (!nodep->coverincp()) {
 	    // Note the name may be overridden by V3Assert processing
-	    nodep->coverincp(newCoverInc(nodep->fileline(), m_beginHier, "psl_cover", "cover"));
+	    nodep->coverincp(newCoverInc(nodep->fileline(), m_beginHier, "v_user", "cover"));
 	}
 	m_checkBlock = true;  // Reset as a child may have cleared it
     }
diff --git a/src/V3EmitC.cpp b/src/V3EmitC.cpp
index 769df58cc..a4cf390c6 100644
--- a/src/V3EmitC.cpp
+++ b/src/V3EmitC.cpp
@@ -202,7 +202,7 @@ public:
 	puts(", ");	puts(cvtToStr(nodep->fileline()->lineno()));
 	puts(", ");	puts(cvtToStr(nodep->column()));
 	puts(", \"");	puts((nodep->hier()!=""?".":"")+nodep->hier()); puts("\"");
-	puts(", \"");	puts(nodep->typeText()); puts("\"");
+	puts(", \"");	puts(nodep->page()); puts("\"");
 	puts(", \"");	puts(nodep->comment()); puts("\"");
 	puts(");\n");
     }
@@ -1199,8 +1199,8 @@ void EmitCImp::emitCoverageDecl(AstModule* modp) {
     if (v3Global.opt.coverage()) {
 	ofp()->putsPrivate(true);
 	puts("// Coverage\n");
-	puts("void __vlCoverInsert(uint32_t* countp, bool enable, const char* filename, int lineno, int column,\n");
-	puts(  	"const char* hier, const char* type, const char* comment);\n");
+	puts("void __vlCoverInsert(uint32_t* countp, bool enable, const char* filenamep, int lineno, int column,\n");
+	puts(  	"const char* hierp, const char* pagep, const char* commentp);\n");
     }
 }
 
@@ -1248,19 +1248,19 @@ void EmitCImp::emitCoverageImp(AstModule* modp) {
 	// This gets around gcc slowness constructing all of the template arguments
 	// SystemPerl 1.301 is much faster, but it's nice to remain back
 	// compatible, and have a common wrapper.
-	puts("void "+modClassName(m_modp)+"::__vlCoverInsert(uint32_t* countp, bool enable, const char* filename, int lineno, int column,\n");
-	puts(  	"const char* hier, const char* type, const char* comment) {\n");
+	puts("void "+modClassName(m_modp)+"::__vlCoverInsert(uint32_t* countp, bool enable, const char* filenamep, int lineno, int column,\n");
+	puts(  	"const char* hierp, const char* pagep, const char* commentp) {\n");
 	puts(   "static uint32_t fake_zero_count = 0;\n");
 	puts(   "if (!enable) countp = &fake_zero_count;\n");  // Used for second++ instantiation of identical bin
 	puts(   "*countp = 0;\n");
 	puts(   "SP_COVER_INSERT(countp,");
-	puts(	"  \"filename\",filename,");
+	puts(	"  \"filename\",filenamep,");
 	puts(	"  \"lineno\",lineno,");
 	puts(	"  \"column\",column,\n");
-	//puts(	"\"hier\",string(__VlSymsp->name())+hier,");  // Need to move hier into scopes and back out if do this
-	puts(	"\"hier\",string(name())+hier,");
-	puts(	"  \"type\",type,");
-	puts(	"  \"comment\",comment);\n");
+	//puts(	"\"hier\",string(__VlSymsp->name())+hierp,");  // Need to move hier into scopes and back out if do this
+	puts(	"\"hier\",string(name())+hierp,");
+	puts(	"  \"page\",pagep,");
+	puts(	"  \"comment\",commentp);\n");
 	puts("}\n");
     }
 }
diff --git a/test_sp/Makefile b/test_sp/Makefile
index e422fed6e..636fc8c02 100644
--- a/test_sp/Makefile
+++ b/test_sp/Makefile
@@ -20,7 +20,7 @@ export VERILATOR_ROOT
 # Pick up PERL and other variable settings
 include $(VERILATOR_ROOT)/include/verilated.mk
 
-DEBUG_ON = --debug --trace-dups --output-split 100
+DEBUG_ON = --debug --trace-dups
 
 ######################################################################
 test_default:  prep        preproc compile     run coverage
@@ -31,7 +31,7 @@ V_FLAGS = -f $(VERILATOR_ROOT)/test_v/input.vc
 
 # Note the --public --output-split-cfunc is here for testing only,
 # Avoid using these settings in real application Makefiles!
-VERILATOR_FLAGS = --public --output-split-cfuncs 100 --output-split 100 \
+VERILATOR_FLAGS = --public --output-split-cfuncs 1000 --output-split 1000 \
 	--sp --coverage --stats --trace $(V_FLAGS) top.v
 
 prep: