diff --git a/rule.c b/rule.c
index c2077d20d..31f0478ca 100644
--- a/rule.c
+++ b/rule.c
@@ -24,6 +24,8 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 */
 
+#define basename(name) (strrchr((name),'/') ? strrchr((name),'/')+1 : (name))
+
 // load a rule specified on cmd line or .goomwwmrc
 int rule_parse(char *rulestr)
 {