diff --git a/libytest.so b/libytest.so
index cbbf909..88436bc 100644
Binary files a/libytest.so and b/libytest.so differ
diff --git a/yfmock/src/fmock/fmock.c b/yfmock/src/fmock/fmock.c
index f01bee3..1c1c5f8 100644
--- a/yfmock/src/fmock/fmock.c
+++ b/yfmock/src/fmock/fmock.c
@@ -188,6 +188,7 @@ __attribute__((destructor))
       //for(int i=0; i< Dk_NOTHING;++i) strcpy(colors_f[i]," ");
     //}
   if(only_usage) return; /* do nothing */
+  if(g_list_base_fmock == NULL) return; /* do nothing because no mock functions */
     struct winsize w;
     ioctl(1, TIOCGWINSZ, &w);