diff --git a/src/mesa/program/register_allocate.h b/src/mesa/program/register_allocate.h
index 1dd28bee3af..337dcf7099b 100644
--- a/src/mesa/program/register_allocate.h
+++ b/src/mesa/program/register_allocate.h
@@ -25,6 +25,8 @@
  *
  */
 
+#include <stdbool.h>
+
 struct ra_class;
 struct ra_regs;