1 files changed, 1 insertions, 1 deletions
diff --git a/command.c b/command.c
index e7cde6d6f3..364865b899 100644
--- a/command.c
+++ b/command.c
@@ -633,7 +633,7 @@ static int mp_property_metadata(m_option_t *prop, int action, void *arg,
             return M_PROPERTY_OK;
         case M_PROPERTY_GET_TYPE:
             if(!ka->arg) return M_PROPERTY_ERROR;
-            *(m_option_t**)ka->arg = &key_type;
+            *(const m_option_t**)ka->arg = &key_type;
             return M_PROPERTY_OK;
         }
     }