diff --git a/pkg/dart2bytecode/lib/object_table.dart b/pkg/dart2bytecode/lib/object_table.dart
index 06ff4b83d11..9e803e8e3fb 100644
--- a/pkg/dart2bytecode/lib/object_table.dart
+++ b/pkg/dart2bytecode/lib/object_table.dart
@@ -2173,7 +2173,8 @@ class _NodeVisitor extends VisitorDefault<ObjectHandle?>
 
   @override
   ObjectHandle? visitFunctionType(FunctionType node) {
-    final int numEnclosingTypeParameters = _typeParameters.length;
+    final int numEnclosingTypeParameters =
+        objectTable.numEnclosingFunctionTypeParameters + _typeParameters.length;
     for (int i = 0; i < node.typeParameters.length; ++i) {
       _typeParameters[node.typeParameters[i]] = objectTable.getOrAddObject(
           new _TypeParameterHandle(
@@ -2198,8 +2199,7 @@ class _NodeVisitor extends VisitorDefault<ObjectHandle?>
     final returnType = objectTable.getHandle(node.returnType) as _TypeHandle;
 
     final result = objectTable.getOrAddObject(new _FunctionTypeHandle(
-        objectTable.numEnclosingFunctionTypeParameters +
-            numEnclosingTypeParameters,
+        numEnclosingTypeParameters,
         typeParameters,
         node.requiredParameterCount,
         positionalParams,