diff --git a/phpBB/styles/prosilver/template/posting_buttons.html b/phpBB/styles/prosilver/template/posting_buttons.html
index c5cdfad156..e8338c6c86 100644
--- a/phpBB/styles/prosilver/template/posting_buttons.html
+++ b/phpBB/styles/prosilver/template/posting_buttons.html
@@ -28,7 +28,7 @@
 		y: '{LA_BBCODE_Y_HELP}',
 		d: '{LA_BBCODE_D_HELP}'
 		<!-- BEGIN custom_tags -->
-			,cb_{custom_tags.BBCODE_ID}{L_COLON} '{custom_tags.A_BBCODE_HELPLINE}'
+			,cb_{custom_tags.BBCODE_ID}: '{custom_tags.A_BBCODE_HELPLINE}'
 		<!-- END custom_tags -->
 	}
 
diff --git a/phpBB/styles/subsilver2/template/posting_buttons.html b/phpBB/styles/subsilver2/template/posting_buttons.html
index 7a3a4ca73c..06de2c3169 100644
--- a/phpBB/styles/subsilver2/template/posting_buttons.html
+++ b/phpBB/styles/subsilver2/template/posting_buttons.html
@@ -27,7 +27,7 @@
 			d: '{LA_BBCODE_D_HELP}',
 			tip: '{L_STYLES_TIP}'
 			<!-- BEGIN custom_tags -->
-				,cb_{custom_tags.BBCODE_ID}{L_COLON} '{custom_tags.A_BBCODE_HELPLINE}'
+				,cb_{custom_tags.BBCODE_ID}: '{custom_tags.A_BBCODE_HELPLINE}'
 			<!-- END custom_tags -->
 		}