diff --git a/coord/ops.hpp b/coord/ops.hpp
index 66d427bc..f54e2039 100644
--- a/coord/ops.hpp
+++ b/coord/ops.hpp
@@ -20,7 +20,7 @@
 #ifndef __UTIL_COORDS_OPS
 #define __UTIL_COORDS_OPS
 
-#include "preprocessor.hpp"
+#include "../preprocessor.hpp"
 
 #include <cstdlib>