diff --git a/conf.c b/conf.c
index 3078321..b519090 100644
--- a/conf.c
+++ b/conf.c
@@ -434,6 +434,10 @@ conf_mousebind(struct conf *c, char *name, char *binding)
 	    strchr(name, 'S') < strchr(name, '-'))
 		current_binding->modmask |= ShiftMask;
 
+	if (strchr(name, '4') != NULL &&
+	    strchr(name, '4') < strchr(name, '-'))
+		current_binding->modmask |= Mod4Mask;
+
 	substring = strchr(name, '-') + 1;
 
 	if (strchr(name, '-') == NULL)
diff --git a/cwmrc.5 b/cwmrc.5
index 9a421ae..95df88a 100644
--- a/cwmrc.5
+++ b/cwmrc.5
@@ -15,7 +15,7 @@
 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"
 .\" The following requests are required for all man pages.
-.Dd $Mdocdate: June 17 2008 $
+.Dd $Mdocdate: June 25 2008 $
 .Dt CWMRC 5
 .Os
 .Sh NAME
@@ -141,6 +141,8 @@ The Control key.
 The Meta key.
 .It S
 The Shift key.
+.It 4
+The Mod4 key (normally the windows key).
 .El
 .Pp
 The