diff --git a/client.c b/client.c
index 8c99d6c00..c97571615 100644
--- a/client.c
+++ b/client.c
@@ -363,7 +363,7 @@ client_manage(Window w, XWindowAttributes *wa, awesome_config *awesomeconf)
 
     /* rearrange to display new window */
     arrange(awesomeconf);
-    if(newscreen != -1)
+    if(newscreen != RULE_NOSCREEN)
         arrange(&awesomeconf[newscreen - awesomeconf->screen]);
 }
 
diff --git a/config.c b/config.c
index 4c0edf876..9a85591c0 100644
--- a/config.c
+++ b/config.c
@@ -283,7 +283,7 @@ parse_config(const char *confpatharg, awesome_config *awesomeconf)
         CFG_STR((char *) "name", (char *) "", CFGF_NONE),
         CFG_STR((char *) "tags", (char *) "", CFGF_NONE),
         CFG_BOOL((char *) "float", cfg_false, CFGF_NONE),
-        CFG_INT((char *) "screen", -1, CFGF_NONE),
+        CFG_INT((char *) "screen", RULE_NOSCREEN, CFGF_NONE),
         CFG_END()
     };
     static cfg_opt_t rules_opts[] =
diff --git a/tag.c b/tag.c
index 75d7be832..4535ee03a 100644
--- a/tag.c
+++ b/tag.c
@@ -58,7 +58,7 @@ applyrules(Client *c, awesome_config *awesomeconf)
                 }
                 else
                     c->tags[j] = False;
-            if(r->screen != -1 && r->screen != awesomeconf->screen)
+            if(r->screen != RULE_NOSCREEN && r->screen != awesomeconf->screen)
             {
                 screen = r->screen;
                 move_client_to_screen(c, &awesomeconf[r->screen - awesomeconf->screen], True);
diff --git a/tag.h b/tag.h
index 2ae039fb7..0c410304d 100644
--- a/tag.h
+++ b/tag.h
@@ -24,6 +24,8 @@
 
 #include "client.h"
 
+#define RULE_NOSCREEN                                     -1
+
 /** Check if a client is tiled */
 #define IS_TILED(client, screen, tags, ntags)            (client && !client->isfloating && isvisible(client, screen, tags, ntags))