diff --git a/.travis.yml b/.travis.yml
index dbe8e00..44dc6c6 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -39,8 +39,8 @@ install:
   - sudo make install
   - cd ../../zamabraga/tweetnacl-cs
 script:
-  - xbuild /p:Configuration=Debug  ./src/TweetNaCl.sln
-  - ls ./src/TweetNaCl.Tests/bin/Debug/
+  - xbuild /p:Configuration=Release  ./src/TweetNaCl.sln
+  - ls ./src/TweetNaCl.Tests/bin/Release/
   - export LD_LIBRARY_PATH=/usr/local/lib  
   - mono --debug --profile=monocov:outfile=monocovCoverage.cov,+[TweetNaCl] ./src/packages/NUnit.Console.3.0.1/tools/nunit3-console.exe ./src/TweetNaCl.Tests/bin/Debug/TweetNaCl.Tests.dll  
   - monocov --export-xml=monocovCoverage monocovCoverage.cov