diff --git a/config.arg.h b/config.arg.h
index 00a1d13..dc751f0 100644
--- a/config.arg.h
+++ b/config.arg.h
@@ -57,10 +57,10 @@ static Key key[] = { \
 };
 
 #define RULES \
-	const unsigned int firefox[] = { 2 }; \
+	const unsigned int tag2[] = { 2 }; \
 static Rule rule[] = { \
 	/* class:instance	tags		isfloat */ \
-	{ "Firefox.*",		firefox,	False }, \
+	{ "Firefox.*",		tag2,		False }, \
 	{ "Gimp.*",		NULL,		True}, \
 	{ "MPlayer.*",		NULL,		True}, \
 	{ "Acroread.*",		NULL,		True}, \
diff --git a/config.default.h b/config.default.h
index ce3773e..9eaef03 100644
--- a/config.default.h
+++ b/config.default.h
@@ -48,9 +48,9 @@ static Key key[] = { \
 };
 
 #define RULES \
-	const unsigned int firefox[] = { 2 }; \
+	const unsigned int tag2[] = { 2 }; \
 static Rule rule[] = { \
 	/* class:instance	tags		isfloat */ \
-	{ "Firefox.*",		firefox,	False }, \
+	{ "Firefox.*",		tag2,	False }, \
 	{ "Gimp.*",		NULL,		True}, \
 };