diff --git a/src/OpenGL/libGLESv2/utilities.cpp b/src/OpenGL/libGLESv2/utilities.cpp
index 73a5a4e..70ff932 100644
--- a/src/OpenGL/libGLESv2/utilities.cpp
+++ b/src/OpenGL/libGLESv2/utilities.cpp
@@ -1180,7 +1180,7 @@
 		return false;
 	}
 
-	std::string ParseUniformName(const std::string &name, int *outSubscript)
+	std::string ParseUniformName(const std::string &name, unsigned int *outSubscript)
 	{
 		// Strip any trailing array operator and retrieve the subscript
 		size_t open = name.find_last_of('[');