diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp
index 09033aecd7c..7c73a8fbf02 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -100,7 +100,7 @@ fs_visitor::fail(const char *format, ...)
    this->fail_msg = msg;
 
    if (INTEL_DEBUG & DEBUG_WM) {
-      fprintf(stderr, msg);
+      fprintf(stderr, "%s",  msg);
    }
 }