diff --git a/include/gcc/ck_pr.h b/include/gcc/ck_pr.h
index e981d92..c303ad7 100644
--- a/include/gcc/ck_pr.h
+++ b/include/gcc/ck_pr.h
@@ -44,7 +44,7 @@ ck_pr_barrier(void)
 #ifndef CK_F_PR
 #define CK_F_PR
 
-#include <stdbool.h>
+#include <ck_stdbool.h>
 #include <ck_stdint.h>
 
 /*
diff --git a/include/gcc/x86_64/ck_pr_rtm.h b/include/gcc/x86_64/ck_pr_rtm.h
index bee63d9..45c7b9d 100644
--- a/include/gcc/x86_64/ck_pr_rtm.h
+++ b/include/gcc/x86_64/ck_pr_rtm.h
@@ -50,7 +50,7 @@
 #define CK_F_PR_RTM
 
 #include <ck_cc.h>
-#include <stdbool.h>
+#include <ck_stdbool.h>
 
 #define CK_PR_RTM_STARTED	(~0U)
 #define CK_PR_RTM_EXPLICIT	(1 << 0)