diff --git a/lib/Backend/GlobOpt.cpp b/lib/Backend/GlobOpt.cpp
index 6a6445d1a0c..1e06f32e365 100644
--- a/lib/Backend/GlobOpt.cpp
+++ b/lib/Backend/GlobOpt.cpp
@@ -6791,7 +6791,7 @@ GlobOpt::CanProveConditionalBranch(IR::Instr *instr, Value *src1Val, Value *src2
         {
             return false;
         }
-        *result = src1ValueInfo->IsObject();
+        *result = !src1ValueInfo->IsPrimitive();
         break;
     }
     default: