diff --git a/.buildlibrary b/.buildlibrary
index ab176a3d..9330864e 100644
--- a/.buildlibrary
+++ b/.buildlibrary
@@ -15,3 +15,4 @@ AcceptedNotes:
 AutocreateReadme: yes
 allowLinterWarnings: yes
 enforceVersionUpdate: yes
+
diff --git a/R/convGDX2MIF.R b/R/convGDX2MIF.R
index c1cdc75e..b6b8c14d 100644
--- a/R/convGDX2MIF.R
+++ b/R/convGDX2MIF.R
@@ -87,7 +87,7 @@ convGDX2MIF <- function(gdx, gdx_ref = NULL, file = NULL, scenario = "default",
   output <- mbind(output,reportCrossVariables(gdx,output,regionSubsetList,t)[,t,])
 
   # Report policy costs, if possible and sensible
-  if (!is.null(gdx_refpolicycost)) {
+  if (is.null(gdx_refpolicycost)) {
     gdx_refpolicycost <- gdx
     message("gdx_refpolicycost not defined, report 0 everywhere.")
   }