diff --git a/Overlay/model_manager.h b/Overlay/model_manager.h
index b1890f2..b72e7f4 100644
--- a/Overlay/model_manager.h
+++ b/Overlay/model_manager.h
@@ -2,7 +2,7 @@
 
 #include <openvr/openvr.h>
 #include <windows.h>
-#include <gl/GL.h>
+#include <GL/gl.h>
 #include <string>
 #include <vector>
 #include <map>
@@ -182,4 +182,4 @@ class ModelManager {
     MU_Matrix4 CreateProjectionMatrix(float fov, float aspect, float nearPlane, float farPlane);
     MU_Matrix4 CreateViewMatrix(const MU_Vector3& position, const MU_Vector3& target, const MU_Vector3& up);
     MU_Matrix4 CreateModelMatrix(const MU_Vector3& position, const MU_Vector3& rotation, const MU_Vector3& scale);
-};
\ No newline at end of file
+};
diff --git a/Overlay/overlay_manager.h b/Overlay/overlay_manager.h
index 240898d..345cca2 100644
--- a/Overlay/overlay_manager.h
+++ b/Overlay/overlay_manager.h
@@ -2,7 +2,7 @@
 
 #include <openvr.h>
 #include <windows.h>
-#include <gl/GL.h>
+#include <GL/gl.h>
 #include <string>
 #include <map>
 #include "math_utils.h"
@@ -192,4 +192,4 @@ class OverlayManager {
     
     // OpenGL context (kept private)
     HWND m_hWnd;
-};
\ No newline at end of file
+};