1 files changed, 3 insertions, 2 deletions
diff --git a/source/slang/slang-ir-layout.cpp b/source/slang/slang-ir-layout.cpp
index 244ff2039..cba6894a9 100644
--- a/source/slang/slang-ir-layout.cpp
+++ b/source/slang/slang-ir-layout.cpp
@@ -404,9 +404,10 @@ struct Std430LayoutRules : IRTypeLayoutRules
     }
     virtual IRSizeAndAlignment getVectorSizeAndAlignment(IRSizeAndAlignment element, IRIntegerValue count)
     {
+        IRIntegerValue countForAlignment = count;
         if (count == 3)
-            count = 4;
-        return IRSizeAndAlignment((int)(element.size * count), (int)(element.size * count));
+            countForAlignment = 4;
+        return IRSizeAndAlignment((int)(element.size * count), (int)(element.size * countForAlignment));
     }
 };