diff --git a/include/libopencm3/cm3/cortex.h b/include/libopencm3/cm3/cortex.h
index 07e7a469..e3aa53c6 100644
--- a/include/libopencm3/cm3/cortex.h
+++ b/include/libopencm3/cm3/cortex.h
@@ -33,6 +33,9 @@
 
 /**@{*/
 
+#include <stdbool.h>
+#include <stdint.h>
+
 /*---------------------------------------------------------------------------*/
 /** @brief Cortex M Enable interrupts
  *