diff --git a/sgminer.c b/sgminer.c
index 089b43f6..60347904 100644
--- a/sgminer.c
+++ b/sgminer.c
@@ -8388,6 +8388,7 @@ int main(int argc, char *argv[])
 {
 #ifndef _MSC_VER
   struct sigaction handler;
+  char *s;
 #endif
   struct thr_info *thr;
   struct block *block;