diff --git a/embedding/browser/gtk/src/gtkmozembed.h b/embedding/browser/gtk/src/gtkmozembed.h
index 150890f92fa..96ca5286870 100644
--- a/embedding/browser/gtk/src/gtkmozembed.h
+++ b/embedding/browser/gtk/src/gtkmozembed.h
@@ -32,7 +32,7 @@ extern "C" {
 
 #define GTK_TYPE_MOZ_EMBED             (gtk_moz_embed_get_type())
 #define GTK_MOZ_EMBED(obj)             GTK_CHECK_CAST((obj), GTK_TYPE_MOZ_EMBED, GtkMozEmbed)
-#define GTK_MOZ_EMBED_CLASS(klass)     GTK_CHEK_CLASS_CAST((klass), GTK_TYPE_MOZ_EMBED, GtkMozEmbedClass)
+#define GTK_MOZ_EMBED_CLASS(klass)     GTK_CHECK_CLASS_CAST((klass), GTK_TYPE_MOZ_EMBED, GtkMozEmbedClass)
 #define GTK_IS_MOZ_EMBED(obj)          GTK_CHECK_TYPE((obj), GTK_TYPE_MOZ_EMBED)
 #define GTK_IS_MOZ_EMBED_CLASS(klass)  GTK_CHECK_CLASS_TYPE((klass), GTK_TYPE_MOZ_EMBED)