diff --git a/babeld/babel_interface.c b/babeld/babel_interface.c
index 2cf670712315..1313b754e35c 100644
--- a/babeld/babel_interface.c
+++ b/babeld/babel_interface.c
@@ -1348,5 +1348,8 @@ babel_interface_allocate (void)
 static void
 babel_interface_free (babel_interface_nfo *babel_ifp)
 {
+    if (babel_ifp->ipv4)
+        free(babel_ifp->ipv4);
+
     XFREE(MTYPE_BABEL_IF, babel_ifp);
 }