diff --git a/libc/tasking.c b/libc/tasking.c
index 4d943d1..cec6ebd 100644
--- a/libc/tasking.c
+++ b/libc/tasking.c
@@ -1,3 +1,5 @@
+#include <stdint.h>
+
 void yield() {
   asm volatile("  \
     mov $1, %eax; \