diff --git a/src/xenia/cpu/compiler/passes/simplification_pass.cc b/src/xenia/cpu/compiler/passes/simplification_pass.cc
index 4c02789b8..894c4423b 100644
--- a/src/xenia/cpu/compiler/passes/simplification_pass.cc
+++ b/src/xenia/cpu/compiler/passes/simplification_pass.cc
@@ -796,7 +796,10 @@ bool SimplificationPass::CheckScalarConstCmp(hir::Instr* i,
 
   if (var_definition) {
     var_definition = var_definition->GetDestDefSkipAssigns();
-    def_opcode = var_definition->opcode->num;
+    if (var_definition != NULL)
+    {
+      def_opcode = var_definition->opcode->num;
+    }
   }
   // x == 0 -> !x
   if (cmpop == OPCODE_COMPARE_EQ && constant_unpacked == 0) {