diff --git a/src/egl/drivers/dri2/egl_dri2.c b/src/egl/drivers/dri2/egl_dri2.c
index f968cd7af27..82a0bed5c62 100644
--- a/src/egl/drivers/dri2/egl_dri2.c
+++ b/src/egl/drivers/dri2/egl_dri2.c
@@ -65,6 +65,7 @@
 #include "util/u_atomic.h"
 #include "util/u_vector.h"
 #include "mapi/glapi/glapi.h"
+#include "util/bitscan.h"
 
 /* Additional definitions not yet in the drm_fourcc.h.
  */