diff --git a/config.h b/config.h
index ba9e61a..7b27b71 100644
--- a/config.h
+++ b/config.h
@@ -25,7 +25,7 @@ static const Rule rules[] = {
 	 */
 	/* class                      instance          title         tags mask     isfloating   monitor */
 	{ "Nextcloud",                NULL,             NULL,         1 << 8,       1,           -1 },
-	{ "st",                       "floating",       NULL,         NULL,         1,           -1 },
+	{ "st",                       "floating",       NULL,         0,            1,           -1 },
 	{ "Qemu-system-i386",         NULL,             NULL,         1 << 1,       0,           -1 },
 	{ "odin-term",                NULL,             NULL,         1 << 1,       1,           -1 },