diff --git a/src/tcpedit/plugins/dlt_jnpr_ether/jnpr_ether.c b/src/tcpedit/plugins/dlt_jnpr_ether/jnpr_ether.c
index c53ec297..4d26095c 100644
--- a/src/tcpedit/plugins/dlt_jnpr_ether/jnpr_ether.c
+++ b/src/tcpedit/plugins/dlt_jnpr_ether/jnpr_ether.c
@@ -164,8 +164,10 @@ dlt_jnpr_ether_cleanup(tcpeditdlt_t *ctx)
         jnpr_ether_config_t *config;
 
         config = (jnpr_ether_config_t *)ctx->encoder->config;
-        if (config->subctx != NULL)
+        if (config->subctx != NULL) {
+            ctx->decoded_extra = NULL;
             tcpedit_dlt_cleanup(config->subctx);
+        }
         safe_free(plugin->config);
         plugin->config = NULL;
         plugin->config_size = 0;