1 files changed, 1 insertions, 1 deletions
diff --git a/signal.c b/signal.c
index 8f56c48..eef4669 100644
--- a/signal.c
+++ b/signal.c
@@ -84,7 +84,7 @@
 #include "pthread.h"
 #include "implement.h"
 
-#if HAVE_SIGSET_T
+#if defined(HAVE_SIGSET_T)
 
 static void
 ptw32_signal_thread ()