diff --git a/u7/hash_table.py b/u7/hash_table.py
index fd53964..cd10e66 100644
--- a/u7/hash_table.py
+++ b/u7/hash_table.py
@@ -50,7 +50,11 @@ class HashTable:
             elif self.table[index][0] == key:
                 return index
             i += 1
-        raise KeyError(key)
+        if del_slot is not None:
+            return del_slot
+        else:
+            raise RuntimeError("tabula je povna")
+        #raise KeyError(key)
 
     def load_factor(self):
         """Vráť podiel počtu aktívnych položiek a kapacity."""