diff --git a/Ghidra/Features/Decompiler/src/decompile/cpp/expression.cc b/Ghidra/Features/Decompiler/src/decompile/cpp/expression.cc
index 3298417e5a..0ac7a61ccf 100644
--- a/Ghidra/Features/Decompiler/src/decompile/cpp/expression.cc
+++ b/Ghidra/Features/Decompiler/src/decompile/cpp/expression.cc
@@ -412,7 +412,7 @@ static int4 functionalEqualityLevel0(Varnode *vn1,Varnode *vn2)
     }
     return -1;
   }
-  if (vn2->isConstant()) return -1;
+  if (vn1->isFree() || vn2->isFree()) return -1;
   return 1;
 }