diff --git a/winsup/cygserver/ChangeLog b/winsup/cygserver/ChangeLog
index 4524f4a33..62ac83bde 100644
--- a/winsup/cygserver/ChangeLog
+++ b/winsup/cygserver/ChangeLog
@@ -1,3 +1,7 @@
+2004-07-19  Corinna Vinschen  <corinna@vinschen.de>
+
+	* bsd_mutex.cc (win_priority): Actually calculate p from priority.
+
 2004-06-03  Corinna Vinschen  <corinna@vinschen.de>
 
 	* shm.cc (shmget): Explicitely set td_retval[0] to -1 on error.
diff --git a/winsup/cygserver/bsd_mutex.cc b/winsup/cygserver/bsd_mutex.cc
index 6a9ffb2c6..68802856e 100644
--- a/winsup/cygserver/bsd_mutex.cc
+++ b/winsup/cygserver/bsd_mutex.cc
@@ -109,7 +109,7 @@ msleep_event_name (void *ident, char *name)
 static int
 win_priority (int priority)
 {
-  int p = (int)((p) & PRIO_MASK) - PZERO;
+  int p = (int)((priority) & PRIO_MASK) - PZERO;
   /* Generating a valid priority value is a bit tricky.  The only valid
      values on 9x and NT4 are -15, -2, -1, 0, 1, 2, 15. */
   switch (p)