diff --git a/config.def.h b/config.def.h
index 51e1122..362b063 100644
--- a/config.def.h
+++ b/config.def.h
@@ -35,6 +35,7 @@ static const Rule rules[] = {
 	/* class     instance  title           tags mask  isfloating  iscentered  isterminal  noswallow  monitor */
 	{ "firefox", NULL,     NULL,           0,         0,          0,          0,          -1,        -1 },
 	{ "st",      NULL,     NULL,           0,         0,          0,          1,          -1,        -1 },
+	{ "floating", NULL,    NULL,           0,         1,          1,          1,          -1,        -1 },
 	{ "ncmpcpp", NULL,     NULL,           0,         1,          1,          1,          -1,        -1 },
 	{ "neomutt", NULL,     NULL,           0,         1,          1,          1,          -1,        -1 },
 	{ "transmission", NULL,NULL,           0,         1,          1,          1,          -1,        -1 },