diff --git a/.travis.yml b/.travis.yml
index be06f35..78fe1d5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,10 +6,12 @@ compiler:
 
 env:
   matrix:
-    - CONF=debug   ARCH=x86_64
-    - CONF=release ARCH=x86_64
-    - CONF=debug   ARCH=x86
-    - CONF=release ARCH=x86
+    - CONF=debug   ARCH=x86_64 CXX11=ON
+    - CONF=release ARCH=x86_64 CXX11=ON
+    - CONF=debug   ARCH=x86    CXX11=ON
+    - CONF=release ARCH=x86    CXX11=ON
+    - CONF=debug   ARCH=x86_64 CXX11=OFF
+    - CONF=debug   ARCH=x86    CXX11=OFF
   global:
     - ARCH_FLAGS_x86='-m32'        # #266: don't use SSE on 32-bit
     - ARCH_FLAGS_x86_64='-msse4.2' #       use SSE4.2 on 64-bit
@@ -34,6 +36,7 @@ before_script:
         eval "ARCH_FLAGS=\${ARCH_FLAGS_${ARCH}}" ;
         (cd build && cmake 
         -DRAPIDJSON_HAS_STDSTRING=ON
+        -DRAPIDJSON_BUILD_CXX11=$CXX11
         -DCMAKE_VERBOSE_MAKEFILE=ON 
         -DCMAKE_BUILD_TYPE=$CONF 
         -DCMAKE_CXX_FLAGS="$ARCH_FLAGS $GCOV_FLAGS"