diff --git a/linux/testvector-generation/silencePipe.c b/linux/testvector-generation/silencePipe.c
index 2cd531b89..3ffeb14b4 100644
--- a/linux/testvector-generation/silencePipe.c
+++ b/linux/testvector-generation/silencePipe.c
@@ -12,6 +12,8 @@ int main(void)
       ssize_t lineSize = getline(&line, &len, stdin);
       if (silenceChar!='1') {
           printf("%s",line);
+      } else {
+        fprintf(stderr,"%s",line);
       }
   }
   free(line);