diff --git a/src/detour.h b/src/detour.h
index b755ebb..cc85ff7 100644
--- a/src/detour.h
+++ b/src/detour.h
@@ -10,6 +10,7 @@
 #define DETOUR_H_ 1
 
 #include <stdint.h>
+#include <stdbool.h>
 
 #ifdef __i386__
 #define JMP_SZ_ 7 /* Size of jmp instructions in 32bit */