diff --git a/application/controller/static_page_generater/main.go b/application/controller/static_page_generater/main.go
index 0c45488..495438f 100644
--- a/application/controller/static_page_generater/main.go
+++ b/application/controller/static_page_generater/main.go
@@ -314,8 +314,8 @@ func parseFile(
 		mimeType = "application/binary"
 	}
 
-	if strings.HasPrefix(mimeType, "image/x-icon") {
-		// Don't compress icons
+	if strings.HasPrefix(mimeType, "image/") {
+		// Don't compress images
 	} else if strings.HasPrefix(mimeType, "application/font-woff") {
 		// Don't compress web fonts
 	} else {