diff --git a/Changes b/Changes
index 041c08589..3a68943e0 100644
--- a/Changes
+++ b/Changes
@@ -5,6 +5,8 @@ The contributors that suggested a given feature are shown in []. Thanks!
 
 * Verilator 4.107 devel
 
+****  Fix passing parameter type instantiations by position number.
+
 
 * Verilator 4.106 2020-12-02
 
diff --git a/src/V3LinkDot.cpp b/src/V3LinkDot.cpp
index c82b3dba5..d9d32c101 100644
--- a/src/V3LinkDot.cpp
+++ b/src/V3LinkDot.cpp
@@ -1161,7 +1161,7 @@ class LinkDotFindVisitor final : public AstNVisitor {
                 VSymEnt* insp
                     = m_statep->insertSym(m_curSymp, nodep->name(), nodep, m_classOrPackagep);
                 if (m_statep->forPrimary() && nodep->isGParam()) {
-                    m_paramNum++;
+                    ++m_paramNum;
                     VSymEnt* symp
                         = m_statep->insertSym(m_curSymp, "__paramNumber" + cvtToStr(m_paramNum),
                                               nodep, m_classOrPackagep);
@@ -1191,6 +1191,12 @@ class LinkDotFindVisitor final : public AstNVisitor {
         UASSERT_OBJ(m_curSymp, nodep, "Parameter type not under module/package/$unit");
         iterateChildren(nodep);
         m_statep->insertSym(m_curSymp, nodep->name(), nodep, m_classOrPackagep);
+        if (m_statep->forPrimary() && nodep->isGParam()) {
+            ++m_paramNum;
+            VSymEnt* symp = m_statep->insertSym(m_curSymp, "__paramNumber" + cvtToStr(m_paramNum),
+                                                nodep, m_classOrPackagep);
+            symp->exported(false);
+        }
     }
     virtual void visit(AstCFunc* nodep) override {
         // For dotted resolution, ignore all AstVars under functions, otherwise shouldn't exist
diff --git a/test_regress/t/t_class_vparam.out b/test_regress/t/t_class_vparam.out
index 1816089b8..c5a35f922 100644
--- a/test_regress/t/t_class_vparam.out
+++ b/test_regress/t/t_class_vparam.out
@@ -1,7 +1,4 @@
 %Error-UNSUPPORTED: t/t_class_vparam.v:13:40: Unsupported: parameterized packages
    13 |    pure virtual function void funcname(paramed_class_t #(CTYPE_t) v);
       |                                        ^~~~~~~~~~~~~~~
-%Error: t/t_class_vparam.v:13:58: Parameter pin not found: '__paramNumber1'
-   13 |    pure virtual function void funcname(paramed_class_t #(CTYPE_t) v);
-      |                                                          ^~~~~~~
 %Error: Exiting due to
diff --git a/test_regress/t/t_param_type3.v b/test_regress/t/t_param_type3.v
index d0fc19307..dca6bdc19 100644
--- a/test_regress/t/t_param_type3.v
+++ b/test_regress/t/t_param_type3.v
@@ -17,32 +17,42 @@ module t (/*AUTOARG*/
    output T_t o;
    output T_t o2;
 
-   sub #(.T_t(T_t))
-   sub (.i, .o);
+   sub1 #(.T_t(T_t), .CHECK(1))
+   sub1 (.i, .o);
 
-   sub2 #(.T_t(T_t))
+   sub2 #(.T_t(T_t), .CHECK(2))
    sub2 (.i, .o(o2));
 
+   sub1 #(T_t, 1)
+   sub1b (i, o);
+
+   sub2 #(T_t, 2)
+   sub2b (i, o2);
+
 endmodule
 
-module sub (i,o);
-   parameter type T_t = logic;
+module sub1 (i,o);
+   parameter type T_t = real;
    localparam type T2_t = T_t;
+   parameter int CHECK = 0;
    input  T_t i;
    output T2_t o;
    assign o = i;
+   if (CHECK != 1) $error;
 endmodule
 
 module sub2
   #(
-    parameter type T_t = logic,
-    localparam type T2_t = T_t
+    parameter type T_t = real,
+    localparam type T2_t = T_t,
+    parameter int CHECK = 0
     )
    (
     input  T_t i,
     output T_t o
     );
    assign o = i;
+   if (CHECK != 2) $error;
 endmodule
 
 // Local Variables: