diff --git a/webrender/res/ps_border_corner.vs.glsl b/webrender/res/ps_border_corner.vs.glsl
index f607bd863f..0d32492816 100644
--- a/webrender/res/ps_border_corner.vs.glsl
+++ b/webrender/res/ps_border_corner.vs.glsl
@@ -91,6 +91,7 @@ int select_style(int color_select, vec2 fstyle) {
 
     switch (color_select) {
         case SIDE_BOTH:
+        {
             // TODO(gw): A temporary hack! While we don't support
             //           border corners that have dots or dashes
             //           with another style, pretend they are solid
@@ -102,6 +103,7 @@ int select_style(int color_select, vec2 fstyle) {
             if (style.x != style.y && (has_dots || has_dashes))
                 return BORDER_STYLE_SOLID;
             return style.x;
+        }
         case SIDE_FIRST:
             return style.x;
         case SIDE_SECOND:
diff --git a/webrender/res/ps_border_edge.vs.glsl b/webrender/res/ps_border_edge.vs.glsl
index 1c71eea33e..ff5b485019 100644
--- a/webrender/res/ps_border_edge.vs.glsl
+++ b/webrender/res/ps_border_edge.vs.glsl
@@ -42,11 +42,15 @@ void write_color(vec4 color, float style, bool flip) {
 
     switch (int(style)) {
         case BORDER_STYLE_GROOVE:
+        {
             modulate = flip ? vec2(1.3, 0.7) : vec2(0.7, 1.3);
             break;
+        }
         case BORDER_STYLE_RIDGE:
+        {
             modulate = flip ? vec2(0.7, 1.3) : vec2(1.3, 0.7);
             break;
+        }
         default:
             modulate = vec2(1.0);
             break;