diff --git a/GeoLib/Grid.h b/GeoLib/Grid.h
index 286b61e2a96e3467241d755905bb786ec2b7375f..6ad03f522947dbb8b103b690f4e063e14d524d43 100644
--- a/GeoLib/Grid.h
+++ b/GeoLib/Grid.h
@@ -25,7 +25,7 @@
 #include "GEOObjects.h"
 
 // MathLib
-#include "MathTools.h"
+#include "MathLib/MathTools.h"
 
 namespace GeoLib
 {