1 files changed, 5 insertions, 0 deletions
diff --git a/src/format/symiter.c b/src/format/symiter.c
index 74b4abb..230b4ac 100644
--- a/src/format/symiter.c
+++ b/src/format/symiter.c
@@ -63,6 +63,11 @@ sym_iter_t *create_symbol_iterator(GBinFormat *format, size_t index)
 {
     sym_iter_t *result;                     /* Structure à retourner       */
 
+#ifndef NDEBUG
+    if (index > 0)
+        g_binary_format_check_for_symbols_lock(format);
+#endif
+
     result = (sym_iter_t *)malloc(sizeof(sym_iter_t));
 
     g_object_ref(G_OBJECT(format));