diff --git a/include/channel.h b/include/channel.h
index 50b6444d..6da04696 100644
--- a/include/channel.h
+++ b/include/channel.h
@@ -114,7 +114,7 @@ struct Client;
 #define MODE_APASS	0x200000
 #define MODE_WASDELJOINS 0x400000 	/**< Not DELJOINS, but some joins
 					 * pending */
-#define MODE_NOPARTMSGS 0x800000       /**< +P No part messages */
+#define MODE_NOPARTMSGS 0x800000       /**< +u No part messages */
 #define MODE_MODERATENOREG 0x1000000    /**< +M Moderate unauthed users */
 
 /** mode flags which take another parameter (With PARAmeterS)
@@ -122,7 +122,7 @@ struct Client;
 #define MODE_WPARAS     (MODE_CHANOP|MODE_VOICE|MODE_BAN|MODE_KEY|MODE_LIMIT|MODE_APASS|MODE_UPASS)
 
 /** Available Channel modes */
-#define infochanmodes feature_bool(FEAT_OPLEVELS) ? "AbiklmnopstUvrDdRcCPM" : "biklmnopstvrDdRcCPM"
+#define infochanmodes feature_bool(FEAT_OPLEVELS) ? "AbiklmnopstUvrDdRcCuM" : "biklmnopstvrDdRcCuM"
 /** Available Channel modes that take parameters */
 #define infochanmodeswithparams feature_bool(FEAT_OPLEVELS) ? "AbkloUv" : "bklov"
 
diff --git a/include/supported.h b/include/supported.h
index b32289da..1d2e34c4 100644
--- a/include/supported.h
+++ b/include/supported.h
@@ -66,8 +66,8 @@
                         feature_int(FEAT_CHANNELLEN), CHANNELLEN, \
                         (feature_bool(FEAT_LOCAL_CHANNELS) ? "#&" : "#"), "(ov)@+", "@+", \
                         (feature_bool(FEAT_OPLEVELS) \
-                        ? "b,AkU,l,imnpstrDdRcCPM" \
-                        :   "b,k,l,imnpstrDdRcCPM"), \
+                        ? "b,AkU,l,imnpstrDdRcCuM" \
+                        :   "b,k,l,imnpstrDdRcCuM"), \
                         "rfc1459", feature_str(FEAT_NETWORK)
 
 #endif /* INCLUDED_supported_h */
diff --git a/ircd/channel.c b/ircd/channel.c
index 0a533ca5..fd8a22f8 100644
--- a/ircd/channel.c
+++ b/ircd/channel.c
@@ -840,7 +840,7 @@ void channel_modes(struct Client *cptr, char *mbuf, char *pbuf, int buflen,
   if (chptr->mode.mode & MODE_NOCTCP)
     *mbuf++ = 'C';
   if (chptr->mode.mode & MODE_NOPARTMSGS)
-    *mbuf++ = 'P';
+    *mbuf++ = 'u';
   if (chptr->mode.mode & MODE_MODERATENOREG)
     *mbuf++ = 'M';
   if (chptr->mode.limit) {
@@ -1540,7 +1540,7 @@ modebuf_flush_int(struct ModeBuf *mbuf, int all)
     MODE_REGISTERED,	'R',
     MODE_NOCOLOR,       'c',
     MODE_NOCTCP,        'C',
-    MODE_NOPARTMSGS,    'P',
+    MODE_NOPARTMSGS,    'u',
     MODE_MODERATENOREG, 'M',
 /*  MODE_KEY,		'k', */
 /*  MODE_BAN,		'b', */
@@ -2109,7 +2109,7 @@ modebuf_extract(struct ModeBuf *mbuf, char *buf)
     MODE_DELJOINS,      'D',
     MODE_NOCOLOR,       'c',
     MODE_NOCTCP,        'C',
-    MODE_NOPARTMSGS,    'P',
+    MODE_NOPARTMSGS,    'u',
     MODE_MODERATENOREG, 'M',
     0x0, 0x0
   };
@@ -3254,7 +3254,7 @@ mode_parse(struct ModeBuf *mbuf, struct Client *cptr, struct Client *sptr,
     MODE_DELJOINS,      'D',
     MODE_NOCOLOR,       'c',
     MODE_NOCTCP,        'C',
-    MODE_NOPARTMSGS,    'P',
+    MODE_NOPARTMSGS,    'u',
     MODE_MODERATENOREG, 'M',
     MODE_ADD,		'+',
     MODE_DEL,		'-',
diff --git a/ircd/m_clearmode.c b/ircd/m_clearmode.c
index 2476b15b..70bcc00a 100644
--- a/ircd/m_clearmode.c
+++ b/ircd/m_clearmode.c
@@ -126,7 +126,7 @@ do_clearmode(struct Client *cptr, struct Client *sptr, struct Channel *chptr,
     MODE_DELJOINS,      'D',
     MODE_NOCOLOR,       'c',
     MODE_NOCTCP,        'C',
-    MODE_NOPARTMSGS,    'P',
+    MODE_NOPARTMSGS,    'u',
     MODE_MODERATENOREG, 'M',
     0x0, 0x0
   };