1 files changed, 1 insertions, 0 deletions
diff --git a/main.c b/main.c
index 4c058b4..afa2e65 100644
--- a/main.c
+++ b/main.c
@@ -2,6 +2,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <unistd.h>
 
 extern ht_t *WORD_TABLE;
 extern array_t *STACK;