diff --git a/genkeys.go b/genkeys.go
index 9892f29ce..e7e75817a 100644
--- a/genkeys.go
+++ b/genkeys.go
@@ -706,9 +706,9 @@ func main() {
 		// Pass the build tag and extract this in the template to make `go vet` happy.
 		buildTag := ""
 		switch path {
-		case "internal/glfw/keys.go":
+		case filepath.Join("internal", "glfw", "keys.go"):
 			buildTag = "// +build !js"
-		case "internal/uidriver/glfw/keys.go":
+		case filepath.Join("internal", "uidriver", "glfw", "keys.go"):
 			buildTag = "// +build darwin freebsd linux windows" +
 				"\n// +build !android" +
 				"\n// +build !ios"