diff --git a/src/libnmc-setting/nm-meta-setting-desc.c b/src/libnmc-setting/nm-meta-setting-desc.c
index 90e080b668..5bb2b4511e 100644
--- a/src/libnmc-setting/nm-meta-setting-desc.c
+++ b/src/libnmc-setting/nm-meta-setting-desc.c
@@ -4317,7 +4317,7 @@ static gboolean _set_fcn_ethtool(ARGS_SET_FCN)
     if (!nmc_string_to_ternary_full(value,
                                     NMC_STRING_TO_TERNARY_FLAGS_IGNORE_FOR_DEFAULT,
                                     &t,
-                                    error)) {
+                                    NULL)) {
         g_set_error(error,
                     NM_UTILS_ERROR,
                     NM_UTILS_ERROR_INVALID_ARGUMENT,