diff --git a/lib/libiconv_modules/VIQR/citrus_viqr.c b/lib/libiconv_modules/VIQR/citrus_viqr.c
--- a/lib/libiconv_modules/VIQR/citrus_viqr.c
+++ b/lib/libiconv_modules/VIQR/citrus_viqr.c
@@ -195,9 +195,9 @@
 static void
 mnemonic_destroy(mnemonic_t *m)
 {
-	mnemonic_t *m0;
+	mnemonic_t *m0, *n;
 
-	TAILQ_FOREACH(m0, &m->child, entry)
+	TAILQ_FOREACH_SAFE(m0, &m->child, entry, n)
 		mnemonic_destroy(m0);
 	free(m);
 }