diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h
index dbd16a2d37db..fd5aa47bd689 100644
--- a/include/uapi/drm/i915_drm.h
+++ b/include/uapi/drm/i915_drm.h
@@ -358,7 +358,7 @@ typedef struct drm_i915_irq_wait {
 #define I915_PARAM_HAS_RESOURCE_STREAMER 36
 
 typedef struct drm_i915_getparam {
-	s32 param;
+	__s32 param;
 	/*
 	 * WARNING: Using pointers instead of fixed-size u64 means we need to write
 	 * compat32 code. Don't repeat this mistake.