1 files changed, 1 insertions, 0 deletions
diff --git a/numsort.c b/numsort.c
index 34e685f..41928f8 100644
--- a/numsort.c
+++ b/numsort.c
@@ -1,6 +1,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <stdint.h>
+#include <string.h>
 #include <math.h>
 #include <limits.h>