diff --git a/.travis.yml b/.travis.yml
index cbcb6aeb..08de7b4e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,6 @@
 env:
   global:
     - mp-units:CONAN_RUN_TESTS: 1
-    - CONAN_DOCKER_32_IMAGES: 1
 
 linux: &linux
   os: linux