diff -r 46109f7eeb14 dwm.c
--- a/dwm.c	Mon Dec 21 01:14:28 2009 -0500
+++ b/dwm.c	Mon Dec 21 01:16:38 2009 -0500
@@ -1841,7 +1841,7 @@
 
 	if(!XGetWMNormalHints(dpy, c->win, &size, &msize))
 		/* size is uninitialized, ensure that size.flags aren't used */
-		size.flags = PSize;
+		size.flags = 0;
 	if(size.flags & PBaseSize) {
 		c->basew = size.base_width;
 		c->baseh = size.base_height;
@@ -1880,6 +1880,11 @@
 	}
 	else
 		c->maxa = c->mina = 0.0;
+	if(size.flags & PSize) {
+		c->basew = size.base_width;
+		c->baseh = size.base_height;
+		c->isfloating = True;
+	}
 	c->isfixed = (c->maxw && c->minw && c->maxh && c->minh
 	             && c->maxw == c->minw && c->maxh == c->minh);
 }