diff --git a/.ci/travis/linux/scripts/docker-qgis-build.sh b/.ci/travis/linux/scripts/docker-qgis-build.sh
index 972b10f82f4..017f6f781aa 100755
--- a/.ci/travis/linux/scripts/docker-qgis-build.sh
+++ b/.ci/travis/linux/scripts/docker-qgis-build.sh
@@ -6,7 +6,7 @@ set -e
 # Setup ccache
 ##############
 export CCACHE_TEMPDIR=/tmp
-ccache -M 1G
+ccache -M 1.2G
 
 # Temporarily uncomment to debug ccache issues
 # export CCACHE_LOGFILE=/tmp/cache.debug