diff --git a/deps/glutils/src/glutils.cpp b/deps/glutils/src/glutils.cpp
index 6f80d668..d84f40bf 100644
--- a/deps/glutils/src/glutils.cpp
+++ b/deps/glutils/src/glutils.cpp
@@ -102,7 +102,7 @@ void setupShaderParams(
 		ox::Vector<ShaderVarSet> const&vars,
 		GLsizei vertexRowLen) noexcept {
 	// setup vars
-	for (auto lenWritten = 0LU; auto const&v : vars) {
+	for (size_t lenWritten = 0; auto const&v : vars) {
 		auto const attr = static_cast<GLuint>(glGetAttribLocation(shader, v.name.c_str()));
 		glEnableVertexAttribArray(attr);
 		glVertexAttribPointer(