diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 6e997730999..efeee8bff67 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -36,6 +36,7 @@
 
 #include <stdint.h>             /* uint32_t */
 #include <stdbool.h>
+#include "c11/threads.h"
 
 #include "main/glheader.h"
 #include "main/config.h"