1 files changed, 1 insertions, 1 deletions
diff --git a/xf86drm.h b/xf86drm.h
index 5e170f86..c024cc44 100644
--- a/xf86drm.h
+++ b/xf86drm.h
@@ -704,7 +704,7 @@ extern int  drmSLLookupNeighbors(void *l, unsigned long key,
 
 extern int drmOpenOnce(void *unused, const char *BusID, int *newlyopened);
 extern void drmCloseOnce(int fd);
-extern void drmMsg(const char *format, ...);
+extern void drmMsg(const char *format, ...) DRM_PRINTFLIKE(1, 2);
 
 extern int drmSetMaster(int fd);
 extern int drmDropMaster(int fd);