diff --git a/test/Bitcode/memcpy.ll b/test/Bitcode/memcpy.ll
index b6573b5..299eb1e 100644
--- a/test/Bitcode/memcpy.ll
+++ b/test/Bitcode/memcpy.ll
@@ -20,4 +20,4 @@
 
 declare void @llvm.memmove.i32(i8*, i8*, i32, i32)
 
-declare void @llvm.memmove.i64(i8*, i8*, i32, i32)
+declare void @llvm.memmove.i64(i8*, i8*, i64, i32)