diff --git a/src/V3PreProc.cpp b/src/V3PreProc.cpp
index 28058644f..cea6db1f2 100644
--- a/src/V3PreProc.cpp
+++ b/src/V3PreProc.cpp
@@ -212,7 +212,7 @@ private:
 
     void parsingOn() {
         m_off--;
-        if (m_off < 0) fatalSrc("Underflow of parsing cmds");
+        if (m_off < 0) v3fatalSrc("Underflow of parsing cmds");
         // addLineComment no longer needed; getFinalToken will correct.
     }
     void parsingOff() { m_off++; }
@@ -541,7 +541,7 @@ void V3PreProcImp::unputString(const string& strg) {
     // so instead we scan from a temporary buffer, then on EOF return.
     // This is also faster than the old scheme, amazingly.
     if (VL_UNCOVERABLE(m_lexp->m_bufferState != m_lexp->currentBuffer())) {
-        fatalSrc("bufferStack missing current buffer; will return incorrectly");
+        v3fatalSrc("bufferStack missing current buffer; will return incorrectly");
         // Hard to debug lost text as won't know till much later
     }
     m_lexp->scanBytes(strg);
@@ -1091,7 +1091,7 @@ int V3PreProcImp::getStateToken() {
                     m_lexp->pushStateDefForm();
                     goto next_tok;
                 } else {  // LCOV_EXCL_LINE
-                    fatalSrc("Bad case\n");
+                    v3fatalSrc("Bad case\n");
                 }
                 goto next_tok;
             } else if (tok == VP_TEXT) {
@@ -1165,7 +1165,7 @@ int V3PreProcImp::getStateToken() {
             } else {
                 const string msg
                     = std::string{"Bad define text, unexpected "} + tokenName(tok) + "\n";
-                fatalSrc(msg);
+                v3fatalSrc(msg);
             }
             statePop();
             // DEFVALUE is terminated by a return, but lex can't return both tokens.
@@ -1179,7 +1179,7 @@ int V3PreProcImp::getStateToken() {
                 goto next_tok;
             } else {
                 if (VL_UNCOVERABLE(m_defRefs.empty())) {
-                    fatalSrc("Shouldn't be in DEFPAREN w/o active defref");
+                    v3fatalSrc("Shouldn't be in DEFPAREN w/o active defref");
                 }
                 const VDefineRef* const refp = &(m_defRefs.top());
                 error(std::string{"Expecting ( to begin argument list for define reference `"}
@@ -1190,7 +1190,7 @@ int V3PreProcImp::getStateToken() {
         }
         case ps_DEFARG: {
             if (VL_UNCOVERABLE(m_defRefs.empty())) {
-                fatalSrc("Shouldn't be in DEFARG w/o active defref");
+                v3fatalSrc("Shouldn't be in DEFARG w/o active defref");
             }
             VDefineRef* refp = &(m_defRefs.top());
             refp->nextarg(refp->nextarg() + m_lexp->m_defValue);
@@ -1217,7 +1217,7 @@ int V3PreProcImp::getStateToken() {
                     if (state()
                         == ps_JOIN) {  // Handle {left}```FOO(ARG) where `FOO(ARG) might be empty
                         if (VL_UNCOVERABLE(m_joinStack.empty())) {
-                            fatalSrc("`` join stack empty, but in a ``");
+                            v3fatalSrc("`` join stack empty, but in a ``");
                         }
                         const string lhs = m_joinStack.top();
                         m_joinStack.pop();
@@ -1307,7 +1307,7 @@ int V3PreProcImp::getStateToken() {
         case ps_JOIN: {
             if (tok == VP_SYMBOL || tok == VP_TEXT) {
                 if (VL_UNCOVERABLE(m_joinStack.empty())) {
-                    fatalSrc("`` join stack empty, but in a ``");
+                    v3fatalSrc("`` join stack empty, but in a ``");
                 }
                 const string lhs = m_joinStack.top();
                 m_joinStack.pop();
@@ -1363,7 +1363,7 @@ int V3PreProcImp::getStateToken() {
                 goto next_tok;
             }
         }
-        default: fatalSrc("Bad case\n");
+        default: v3fatalSrc("Bad case\n");
         }
         // Default is to do top level expansion of some tokens
         switch (tok) {
@@ -1445,7 +1445,7 @@ int V3PreProcImp::getStateToken() {
                         // Just output the substitution
                         if (state() == ps_JOIN) {  // Handle {left}```FOO where `FOO might be empty
                             if (VL_UNCOVERABLE(m_joinStack.empty())) {
-                                fatalSrc("`` join stack empty, but in a ``");
+                                v3fatalSrc("`` join stack empty, but in a ``");
                             }
                             const string lhs = m_joinStack.top();
                             m_joinStack.pop();
@@ -1481,7 +1481,7 @@ int V3PreProcImp::getStateToken() {
                     goto next_tok;
                 }
             }
-            fatalSrc("Bad case\n");  // FALLTHRU
+            v3fatalSrc("Bad case\n");  // FALLTHRU
             goto next_tok;  // above fatal means unreachable, but fixes static analysis warning
         }
         case VP_ERROR: {
@@ -1518,7 +1518,7 @@ int V3PreProcImp::getStateToken() {
         case VP_DEFFORM:  // Handled by state=ps_DEFFORM;
         case VP_DEFVALUE:  // Handled by state=ps_DEFVALUE;
         default:  // LCOV_EXCL_LINE
-            fatalSrc(std::string{"Internal error: Unexpected token "} + tokenName(tok) + "\n");
+            v3fatalSrc(std::string{"Internal error: Unexpected token "} + tokenName(tok) + "\n");
             break;  // LCOV_EXCL_LINE
         }
         return tok;
diff --git a/src/V3PreProc.h b/src/V3PreProc.h
index 72126141e..f13ef98ed 100644
--- a/src/V3PreProc.h
+++ b/src/V3PreProc.h
@@ -28,9 +28,6 @@
 #include <list>
 #include <map>
 
-// Compatibility with Verilog-Perl's preprocessor
-#define fatalSrc(msg) v3fatalSrc(msg)
-
 class VInFilter;
 class VSpellCheck;