diff --git a/src/c_wrapper/wrap_cl.h b/src/c_wrapper/wrap_cl.h
index 537c56b02a6ad21bc8ae3ac683dbdbc15a780b49..c1feb22a047d1afe3abe5e9635abb88423f4314a 100644
--- a/src/c_wrapper/wrap_cl.h
+++ b/src/c_wrapper/wrap_cl.h
@@ -7,6 +7,8 @@
 
 // {{{ includes
 
+#include <stdint.h>
+
 #define CL_USE_DEPRECATED_OPENCL_1_1_APIS
 
 #ifdef __APPLE__