diff --git a/pass/pass.cpp b/pass/pass.cpp
index 94ad315..90e218c 100644
--- a/pass/pass.cpp
+++ b/pass/pass.cpp
@@ -382,11 +382,13 @@ void IRHashPass::hashType(const Type *Ty, Hasher &hash) {
   case Type::StructTyID: {
     const StructType *STy = cast<StructType>(Ty);
 
-    const StringRef name = STy->getName();
-    if (!name.empty()) {
-      // hash globaly once and just hash the name afterwards
-      hash.update(name);
-      return;
+    if (!STy->isLiteral()) {
+      const StringRef name = STy->getName();
+      if (!name.empty()) {
+        // hash globaly once and just hash the name afterwards
+        hash.update(name);
+        return;
+      }
     }
 
     hash.update(STy->isLiteral());