diff --git a/pkgs/nim-packages/generic.nix b/pkgs/nim-packages/generic.nix
index 14f8c9b..bdd7105 100644
--- a/pkgs/nim-packages/generic.nix
+++ b/pkgs/nim-packages/generic.nix
@@ -19,9 +19,7 @@ let
 
   copyNimDeps = ''
     mkdir -p $NIMBLE_DIR/pkgs
-    if [ ! -f $NIMBLE_DIR/packages_official.json ]; then
-      echo "[]" > $NIMBLE_DIR/packages_official.json
-    fi
+    echo "[]" > $NIMBLE_DIR/packages_official.json
     '' + toString (map (dep: ''
       if [ -d ${dep}/.nimble ]; then
         cp -R ${dep}/.nimble/pkgs $NIMBLE_DIR