diff --git a/Cantera/src/converters/ckr_defs.h b/Cantera/src/converters/ckr_defs.h
index faae6864d..83c3b4a4f 100755
--- a/Cantera/src/converters/ckr_defs.h
+++ b/Cantera/src/converters/ckr_defs.h
@@ -16,7 +16,7 @@
 #include <vector>
 using namespace std;
 
-#include "ctvector.h"
+#include "../ctvector.h"
 
 /// the namespace for the CKReader packaage
 namespace ckr {