diff --git a/.travis.yml b/.travis.yml
index 72a61c2df..1e7ee92ae 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -73,6 +73,7 @@ matrix:
 
   allow_failures:
   - env: BUILD=cabal GHCVER=8.0.2 CABALVER=1.24
+  - env: BUILD=cabal GHCVER=7.8.4 CABALVER=1.18
   - env: BUILD=cabal GHCVER=head  CABALVER=head
   - env: BUILD=stack ARGS="--resolver nightly"