diff --git a/.travis.yml b/.travis.yml
index 7ff6f6372..bf35a7592 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -12,7 +12,7 @@ matrix:
 
 before_install:
   - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then sudo add-apt-repository ppa:ubuntu-toolchain-r/test -y && sudo apt-get update && sudo apt-get install -y g++-7; fi
-  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then ./travis_cmake_linux.sh; fi
+  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then chmod +x travis_cmake_linux.sh && ./travis_cmake_linux.sh; fi
   - git submodule update --init --recursive
 
 script: