1 files changed, 2 insertions, 1 deletions
diff --git a/source/slang/slang-ir-layout.cpp b/source/slang/slang-ir-layout.cpp
index 313761d2c..3ac022f68 100644
--- a/source/slang/slang-ir-layout.cpp
+++ b/source/slang/slang-ir-layout.cpp
@@ -363,11 +363,12 @@ Result getSizeAndAlignment(CompilerOptionSet& optionSet, IRTypeLayoutRules* rule
         IRBuilder builder(module);
 
         auto intType = builder.getIntType();
+        auto int64Type = builder.getInt64Type();
         builder.addDecoration(
             type,
             kIROp_SizeAndAlignmentDecoration,
             builder.getIntValue(intType, (IRIntegerValue)rules->ruleName),
-            builder.getIntValue(intType, sizeAndAlignment.size),
+            builder.getIntValue(int64Type, sizeAndAlignment.size),
             builder.getIntValue(intType, sizeAndAlignment.alignment));
     }