diff --git src/bp-activity/bp-activity-admin.php src/bp-activity/bp-activity-admin.php
index 0eb1e610a..947cf69c3 100644
--- src/bp-activity/bp-activity-admin.php
+++ src/bp-activity/bp-activity-admin.php
@@ -310,7 +310,7 @@ function bp_activity_admin_load() {
 	) );
 	wp_enqueue_style( 'bp_activity_admin_css', $bp->plugin_url . "bp-activity/admin/css/admin{$min}.css", array(),                               bp_get_version()       );
 
-	wp_style_add_data( 'bp_activity_admin_css', 'rtl', true );
+	wp_style_add_data( 'bp_activity_admin_css', 'rtl', 'replace' );
 	if ( $min ) {
 		wp_style_add_data( 'bp_activity_admin_css', 'suffix', $min );
 	}
diff --git src/bp-activity/bp-activity-cssjs.php src/bp-activity/bp-activity-cssjs.php
index ec14cd416..26748b440 100644
--- src/bp-activity/bp-activity-cssjs.php
+++ src/bp-activity/bp-activity-cssjs.php
@@ -36,7 +36,7 @@ function bp_activity_mentions_script() {
 	wp_enqueue_script( 'bp-mentions', buddypress()->plugin_url . "bp-activity/js/mentions{$min}.js", array( 'jquery', 'jquery-atwho' ), bp_get_version(), true );
 	wp_enqueue_style( 'bp-mentions-css', buddypress()->plugin_url . "bp-activity/css/mentions{$min}.css", array(), bp_get_version() );
 
-	wp_style_add_data( 'bp-mentions-css', 'rtl', true );
+	wp_style_add_data( 'bp-mentions-css', 'rtl', 'replace' );
 	if ( $min ) {
 		wp_style_add_data( 'bp-mentions-css', 'suffix', $min );
 	}
diff --git src/bp-core/bp-core-cssjs.php src/bp-core/bp-core-cssjs.php
index 6f5cd4a23..de96cf465 100644
--- src/bp-core/bp-core-cssjs.php
+++ src/bp-core/bp-core-cssjs.php
@@ -156,7 +156,7 @@ function bp_core_register_common_styles() {
 	foreach ( $styles as $id => $style ) {
 		wp_register_style( $id, $style['file'], $style['dependencies'], bp_get_version() );
 
-		wp_style_add_data( $id, 'rtl', true );
+		wp_style_add_data( $id, 'rtl', 'replace' );
 		if ( $min ) {
 			wp_style_add_data( $id, 'suffix', $min );
 		}
diff --git src/bp-core/classes/class-bp-admin.php src/bp-core/classes/class-bp-admin.php
index 7149b5b9a..4f0bd257a 100644
--- src/bp-core/classes/class-bp-admin.php
+++ src/bp-core/classes/class-bp-admin.php
@@ -1105,7 +1105,7 @@ class BP_Admin {
 
 		foreach ( $styles as $id => $style ) {
 			wp_register_style( $id, $style['file'], $style['dependencies'], $version );
-			wp_style_add_data( $id, 'rtl', true );
+			wp_style_add_data( $id, 'rtl', 'replace' );
 
 			if ( $min ) {
 				wp_style_add_data( $id, 'suffix', $min );
diff --git src/bp-core/deprecated/2.1.php src/bp-core/deprecated/2.1.php
index e69db465f..e147bd520 100644
--- src/bp-core/deprecated/2.1.php
+++ src/bp-core/deprecated/2.1.php
@@ -334,7 +334,7 @@ function bp_core_load_buddybar_css() {
 
 	wp_enqueue_style( 'bp-admin-bar', apply_filters( 'bp_core_buddybar_rtl_css', $stylesheet ), array(), bp_get_version() );
 
-	wp_style_add_data( 'bp-admin-bar', 'rtl', true );
+	wp_style_add_data( 'bp-admin-bar', 'rtl', 'replace' );
 	if ( $min ) {
 		wp_style_add_data( 'bp-admin-bar', 'suffix', $min );
 	}
diff --git src/bp-groups/bp-groups-admin.php src/bp-groups/bp-groups-admin.php
index 94ef62829..dd504673a 100644
--- src/bp-groups/bp-groups-admin.php
+++ src/bp-groups/bp-groups-admin.php
@@ -202,7 +202,7 @@ function bp_groups_admin_load() {
 	) );
 	wp_enqueue_style( 'bp_groups_admin_css', $bp->plugin_url . "bp-groups/admin/css/admin{$min}.css", array(), bp_get_version() );
 
-	wp_style_add_data( 'bp_groups_admin_css', 'rtl', true );
+	wp_style_add_data( 'bp_groups_admin_css', 'rtl', 'replace' );
 	if ( $min ) {
 		wp_style_add_data( 'bp_groups_admin_css', 'suffix', $min );
 	}
diff --git src/bp-members/classes/class-bp-members-admin.php src/bp-members/classes/class-bp-members-admin.php
index fe410e5be..8bb69f1bf 100644
--- src/bp-members/classes/class-bp-members-admin.php
+++ src/bp-members/classes/class-bp-members-admin.php
@@ -624,7 +624,7 @@ class BP_Members_Admin {
 
 		wp_enqueue_style( 'bp-members-css', $css, array(), bp_get_version() );
 
-		wp_style_add_data( 'bp-members-css', 'rtl', true );
+		wp_style_add_data( 'bp-members-css', 'rtl', 'replace' );
 		if ( $min ) {
 			wp_style_add_data( 'bp-members-css', 'suffix', $min );
 		}
diff --git src/bp-messages/bp-messages-cssjs.php src/bp-messages/bp-messages-cssjs.php
index f061916cc..1e3d278e4 100644
--- src/bp-messages/bp-messages-cssjs.php
+++ src/bp-messages/bp-messages-cssjs.php
@@ -42,7 +42,7 @@ function messages_add_autocomplete_css() {
 
 		wp_enqueue_style( 'bp-messages-autocomplete', "{$url}autocomplete/jquery.autocompletefb{$min}.css", array(), bp_get_version() );
 
-		wp_style_add_data( 'bp-messages-autocomplete', 'rtl', true );
+		wp_style_add_data( 'bp-messages-autocomplete', 'rtl', 'replace' );
 		if ( $min ) {
 			wp_style_add_data( 'bp-messages-autocomplete', 'suffix', $min );
 		}
diff --git src/bp-xprofile/bp-xprofile-cssjs.php src/bp-xprofile/bp-xprofile-cssjs.php
index 419f5c72f..81c36cc22 100644
--- src/bp-xprofile/bp-xprofile-cssjs.php
+++ src/bp-xprofile/bp-xprofile-cssjs.php
@@ -21,7 +21,7 @@ function xprofile_add_admin_css() {
 
 		wp_enqueue_style( 'xprofile-admin-css', buddypress()->plugin_url . "bp-xprofile/admin/css/admin{$min}.css", array(), bp_get_version() );
 
-		wp_style_add_data( 'xprofile-admin-css', 'rtl', true );
+		wp_style_add_data( 'xprofile-admin-css', 'rtl', 'replace' );
 		if ( $min ) {
 			wp_style_add_data( 'xprofile-admin-css', 'suffix', $min );
 		}