Correct option
diff --git a/.travis.yml b/.travis.yml
index 78d1f1a..5207164 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,7 +2,7 @@
 compiler:
   - gcc
 before_install:
-  - wget https://www.cmake.org/files/v3.3/cmake-3.3.1-Linux-x86_64.tar.gz -O /tmp/cmake.tar.gz --no-certificate-check
+  - wget https://www.cmake.org/files/v3.3/cmake-3.3.1-Linux-x86_64.tar.gz -O /tmp/cmake.tar.gz --no-check-certificate
   - tar xzf /tmp/cmake.tar.gz
   - export PATH=$PWD/cmake-3.3.1-Linux-x86_64/bin/:$PATH
   - export LD_LIBRARY_PATH=$PWD/build/dist/lib:$LD_LIBRARY_PATH