diff --git a/collocatordb.h b/collocatordb.h
index 8038d70..ac76866 100644
--- a/collocatordb.h
+++ b/collocatordb.h
@@ -28,7 +28,7 @@
     double right_npmi;
     double dice;
     double logdice;
-    double af;
+    double ldaf;
     int window;
     int af_window;
   };