diff --git a/.travis.yml b/.travis.yml
index 7966559..e266ad5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -12,4 +12,4 @@ jobs:
       before_install: docker pull thesofproject/sof && docker tag thesofproject/sof sof
       script:
         - echo -e '#!/bin/bash\nmkdir build && cd build && cmake .. && make -Werror -Wall -Wmissing-prototypes -Wimplicit-fallthrough=3 -Wpointer-arith' > build.sh && chmod +x build.sh
-        - docker run -i -t -v `pwd`:/home/sof/work/sof.git --user `id -u` sof ./build.sh
\ No newline at end of file
+        - docker run -i -t -v $(pwd):/home/sof/work/sof.git --user $(id -u) sof ./build.sh