diff --git a/mlir/test/python/integration/dialects/linalg/opsrun.py b/mlir/test/python/integration/dialects/linalg/opsrun.py
index af83990cc14e..f730e637b6cd 100644
--- a/mlir/test/python/integration/dialects/linalg/opsrun.py
+++ b/mlir/test/python/integration/dialects/linalg/opsrun.py
@@ -1,5 +1,6 @@
 # RUN: %PYTHON %s 2>&1 | FileCheck %s
 
+import ctypes
 import sys
 from mlir.ir import *
 from mlir.dialects import builtin