diff --git a/.travis.yml b/.travis.yml
index 156e981..89fe7d0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,5 @@
 language: cpp
 compiler: gcc
 script:
-    - cmake -GCMAKE_BUILD_TYPE=Debug ../test && make
+    - cmake -DCMAKE_BUILD_TYPE=Debug ../test && make
     - ./unit/unit --gtest_filter='*.*'