diff --git a/.travis.yml b/.travis.yml
index 8a5deba8a3..2f48634bcd 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -13,23 +13,22 @@ matrix:
         - export CXX=g++-4.7
     - compiler: gcc
       dist: precise
-      env: BUILDSYSTEM=cmake FLAGS=-DCOMPOSITE_SOURCE_LIMIT=0 # Disable unity builds to catch missing #include directives
+      env: BUILDSYSTEM=cmake PYTHONV=python2.7 FLAGS=-DCOMPOSITE_SOURCE_LIMIT=0 # Disable unity builds to catch missing #include directives
       before_install:
         - export CC=gcc-4.7
         - export CXX=g++-4.7
     - compiler: clang
       dist: precise
-      env: BUILDSYSTEM=cmake FLAGS=-DCOMPOSITE_SOURCE_LIMIT=0 # Disable unity builds to catch missing #include directives
+      env: BUILDSYSTEM=cmake PYTHONV=python3 FLAGS=-DCOMPOSITE_SOURCE_LIMIT=0 # Disable unity builds to catch missing #include directives
     - compiler: gcc
       dist: trusty
-      env: BUILDSYSTEM=cmake FLAGS=-DCOMPOSITE_SOURCE_LIMIT=0 # Disable unity builds to catch missing #include directives
+      env: BUILDSYSTEM=cmake PYTHONV=python3 FLAGS=-DCOMPOSITE_SOURCE_LIMIT=0 # Disable unity builds to catch missing #include directives
       before_install:
         - export CC=gcc-4.7
         - export CXX=g++-4.7
     - compiler: clang
       dist: trusty
-      env: BUILDSYSTEM=cmake FLAGS=-DCOMPOSITE_SOURCE_LIMIT=0 # Disable unity builds to catch missing #include directives
-      env: PYTHONV=python2.7 FLAGS=--override=STDFLOAT_DOUBLE=1
+      env: BUILDSYSTEM=cmake PYTHONV=python2.7 FLAGS=-DCOMPOSITE_SOURCE_LIMIT=0 # Disable unity builds to catch missing #include directives
 addons:
   apt:
     sources: