diff --git a/histo.c b/histo.c
index fc8716333f28dd912f4fd241d63ebd4dca5a2a5d..39e054488a8de8c7b64ba7230dbd14bd02395c97 100644
--- a/histo.c
+++ b/histo.c
@@ -91,6 +91,7 @@ void execute(int mode) {
     free(second_array);
     free(result_sum_array);
     free(result_mul_array);
+    free(converted_array);
 }
 
 int main() {