diff --git a/.travis.yml b/.travis.yml
index 13e597a..757e4c8 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -35,6 +35,8 @@ jobs:
           packages:
 	    - gcc-10
       env: COMPILER=gcc-10 KVER=$(curl -s https://www.kernel.org/releases.json | grep 'mainline' -B1 | head -1 | cut -d'"' -f4)
+    - addons:
+        apt:
           packages:
             - gcc-9
       env: COMPILER=gcc-9 KVER=$(curl -s https://www.kernel.org/releases.json | grep 'mainline' -B1 | head -1 | cut -d'"' -f4)