diff --git a/cgridinterface.c b/cgridinterface.c
index b4b1867c..78a72fbf 100644
--- a/cgridinterface.c
+++ b/cgridinterface.c
@@ -1,8 +1,6 @@
 #include <assert.h>
 #include <stdlib.h>
 
-#include <grid.h>
-
 #include "geometry.h"
 #include "cgridinterface.h"
 
diff --git a/cgridinterface.h b/cgridinterface.h
index 9c8d2665..071a3e38 100644
--- a/cgridinterface.h
+++ b/cgridinterface.h
@@ -19,8 +19,7 @@
 #ifndef CGRIDINTERFACE_H
 #define CGRIDINTERFACE_H
 
-#include <grid.h>
-
+#include "grid.h"
 #include "preprocess.h"
 
 #ifdef __cplusplus