diff --git a/lib/roken/roken-common.h b/lib/roken/roken-common.h
index 8345220db..8e548f1ca 100644
--- a/lib/roken/roken-common.h
+++ b/lib/roken/roken-common.h
@@ -128,6 +128,10 @@
 #define _PATH_VARRUN "/var/run/"
 #endif
 
+#ifndef _PATH_BSHELL
+#define _PATH_BSHELL "/bin/sh"
+#endif
+
 #ifndef MAXPATHLEN
 #define MAXPATHLEN (1024+4)
 #endif