diff --git a/lix/libstore/store-api.cc b/lix/libstore/store-api.cc
index 9e2c19dc0..4ea7903d1 100644
--- a/lix/libstore/store-api.cc
+++ b/lix/libstore/store-api.cc
@@ -1537,7 +1537,10 @@ try {
             try {
                 (*lk)->push_back(TRY_AWAIT(openStore(uri)));
             } catch (Error & e) {
-                logWarning(e.info());
+                logWarning(
+                    {.msg = HintFmt("Failed to setup the substituter at URI '%s': %s", uri, e.msg())
+                    }
+                );
             }
         }