diff --git a/libraries/libapparmor/include/sys/apparmor.h b/libraries/libapparmor/include/sys/apparmor.h
index 32892d065..d70eff947 100644
--- a/libraries/libapparmor/include/sys/apparmor.h
+++ b/libraries/libapparmor/include/sys/apparmor.h
@@ -21,6 +21,7 @@
 #include <stdbool.h>
 #include <stdint.h>
 #include <unistd.h>
+#include <sys/socket.h>
 #include <sys/types.h>
 
 #ifdef __cplusplus