diff --git a/src/lib.rs b/src/lib.rs
index 0967154..e1a63d2 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,5 +1,10 @@
 #![recursion_limit="128"] // for diesel's infer_schema!
 
+// Diesel causes many warnings of the following kind. I expect this to be
+// fixed in a future release of Diesel. Currently used version of Diesel is
+// 1.3.0.
+#![allow(proc_macro_derive_resolution_fallback)]
+
 #[cfg(test)] #[macro_use] extern crate matches;
 #[cfg(test)] #[macro_use] extern crate indoc;