diff --git a/.travis.yml b/.travis.yml
index af56ee94..dbe4e78e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -71,10 +71,6 @@ before_install:
     - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew install libmpc; fi
     - if [[ "$TRAVIS_OS_NAME" == "osx" ]] && [[ "$CC" == "gcc" ]]; then brew install gcc5; fi
 
-env:
-  - PRECISION=single
-  - PRECISION=double
-    
 install:
     - export CC=$CC$VERSION
     - export CXX=$CXX$VERSION
@@ -89,7 +85,11 @@ script:
     - ./scripts/reconfigure_script
     - mkdir build
     - cd build
-    - ../configure CXXFLAGS="-msse4.2 -O3 -std=c++11" LIBS="-lmpfr -lgmp" --enable-precision=$PRECISION --enable-simd=SSE4 --enable-comms=none
+    - ../configure CXXFLAGS="-msse4.2 -O3 -std=c++11" LIBS="-lmpfr -lgmp" --enable-precision=single --enable-simd=SSE4 --enable-comms=none
+    - make -j4
+    - ./benchmarks/Benchmark_dwf --threads 1
+    - make clean
+    - ../configure CXXFLAGS="-msse4.2 -O3 -std=c++11" LIBS="-lmpfr -lgmp" --enable-precision=double --enable-simd=SSE4 --enable-comms=none
     - make -j4
     - ./benchmarks/Benchmark_dwf --threads 1