diff --git a/mlir/include/mlir/Interfaces/LoopLikeInterface.td b/mlir/include/mlir/Interfaces/LoopLikeInterface.td
index cfd15a7746e19..e09b8672f2d08 100644
--- a/mlir/include/mlir/Interfaces/LoopLikeInterface.td
+++ b/mlir/include/mlir/Interfaces/LoopLikeInterface.td
@@ -236,7 +236,7 @@ def LoopLikeOpInterface : OpInterface<"LoopLikeOpInterface"> {
     InterfaceMethod<[{
         Compute the static trip count if possible.
       }],
-      /*retTy=*/"::std::optional<APInt>",
+      /*retTy=*/"::std::optional<::llvm::APInt>",
       /*methodName=*/"getStaticTripCount",
       /*args=*/(ins),
       /*methodBody=*/"",