1 files changed, 1 insertions, 1 deletions
diff --git a/unixish.h b/unixish.h
index a7e00d2d23..cc312b7483 100644
--- a/unixish.h
+++ b/unixish.h
@@ -93,7 +93,7 @@
  */
 /* #define ALTERNATE_SHEBANG "#!" / **/
 
-#if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) || defined(__NetBSD__) || defined(__FreeBSD__)
+#if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) || defined(__NetBSD__) || defined(__FreeBSD__) || defined(__OpenBSD__)
 # include <signal.h>
 #endif