diff --git a/tools/systrace/main.c b/tools/systrace/main.c
index f8573ed1..0e6704d7 100644
--- a/tools/systrace/main.c
+++ b/tools/systrace/main.c
@@ -4,6 +4,7 @@
 #include <string.h>
 #include <sys/wait.h>
 #include <unistd.h>
+#include <stdint.h>
 
 static int arch_ctl_systrace(uint64_t mode) {
 	return arch_ctl(ARCH_CTL_SET_SYSTRACE, (void *)mode);