diff --git a/modules/invoiceplane/default.nix b/modules/invoiceplane/default.nix
index 29e854fe..23a85ac6 100644
--- a/modules/invoiceplane/default.nix
+++ b/modules/invoiceplane/default.nix
@@ -68,7 +68,7 @@ let
     if isString v then
       escapeShellArg v
     # NOTE: If any value contains a , (comma) this will not get escaped
-    else if isList v && any lib.strings.isCoercibleToString v then
+    else if isList v && lib.strings.isConvertibleWithToString v then
       escapeShellArg (concatMapStringsSep "," toString v)
     else if isInt v then
       toString v