diff --git a/wp-includes/class.wp-styles.php b/wp-includes/class.wp-styles.php
index eb160670ca..46cb913bd3 100644
--- a/wp-includes/class.wp-styles.php
+++ b/wp-includes/class.wp-styles.php
@@ -107,17 +107,24 @@ class WP_Styles extends WP_Dependencies {
 			}
 		}
 
-		if ( isset($obj->extra['conditional']) && $obj->extra['conditional'] ) {
-			$tag = "<!--[if {$obj->extra['conditional']}]>\n" . $tag . "<![endif]-->\n";
+		$conditional_pre = $conditional_post = '';
+		if ( isset( $obj->extra['conditional'] ) && $obj->extra['conditional'] ) {
+			$conditional_pre  = "<!--[if {$obj->extra['conditional']}]>\n";
+			$conditional_post = "<![endif]-->\n";
 		}
 
 		if ( $this->do_concat ) {
+			$this->print_html .= $conditional_pre;
 			$this->print_html .= $tag;
-			if ( $inline_style = $this->print_inline_style( $handle, false ) )
+			if ( $inline_style = $this->print_inline_style( $handle, false ) ) {
 				$this->print_html .= sprintf( "<style id='%s-inline-css' type='text/css'>\n%s\n</style>\n", esc_attr( $handle ), $inline_style );
+			}
+			$this->print_html .= $conditional_post;
 		} else {
+			echo $conditional_pre;
 			echo $tag;
 			$this->print_inline_style( $handle );
+			echo $conditional_post;
 		}
 
 		return true;
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 66b467e302..24b6b29429 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.2-alpha-31030';
+$wp_version = '4.2-alpha-31031';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.