diff --git a/src/lib/test/main.c b/src/lib/test/main.c
index 6243368..0ca94bc 100644
--- a/src/lib/test/main.c
+++ b/src/lib/test/main.c
@@ -34,6 +34,7 @@ int main(void)
     }
 
     //DEALLOCATION
+    free(buffer);
     deallocateOutput(encrypted);
 
     return 0;