1 files changed, 5 insertions, 0 deletions
diff --git a/Source/WebCore/platform/graphics/cairo/DrawErrorUnderline.h b/Source/WebCore/platform/graphics/cairo/DrawErrorUnderline.h
index 1e0a846..b90bb8c 100644
--- a/Source/WebCore/platform/graphics/cairo/DrawErrorUnderline.h
+++ b/Source/WebCore/platform/graphics/cairo/DrawErrorUnderline.h
@@ -23,6 +23,9 @@
 
 #if PLATFORM(CAIRO)
 
+#ifndef DrawErrorUnderline_h
+#define DrawErrorUnderline_h
+
 #include <cairo.h>
 
 //
@@ -96,4 +99,6 @@ static inline void drawErrorUnderline(cairo_t* cr, double x, double y, double wi
     }
 }
 
+#endif // DrawErrorUnderline_h
+
 #endif