diff --git a/appveyor.yml b/appveyor.yml
index 3278fd66..a11abfd9 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -30,17 +30,23 @@ environment:
     - ARGS: --toolset=msvc-12.0 address-model=64
     - ARGS: --toolset=msvc-14.0 address-model=64
     - ARGS: --toolset=msvc-14.0 address-model=64 cxxflags=-std:c++latest
-    - ARGS: --toolset=gcc address-model=64 cxxstd=03,11,14,1z
+    - ARGS: --toolset=gcc address-model=64 
+      CXXSTD: 03,11,14,1z
       PATH: C:\mingw-w64\x86_64-6.3.0-posix-seh-rt_v5-rev1\mingw64\bin;%PATH%
-    - ARGS: --toolset=gcc address-model=64 cxxstd=03,11,14,1z
+    - ARGS: --toolset=gcc address-model=64
+      CXXSTD: 03,11,14,1z
       PATH: C:\mingw-w64\i686-5.3.0-posix-dwarf-rt_v4-rev0\mingw64\bin;%PATH%
-    - ARGS: --toolset=gcc address-model=64 cxxstd=03,11,14,1z
+    - ARGS: --toolset=gcc address-model=64
+      CXXSTD: 03,11,14,1z
       PATH: C:\mingw-w64\x86_64-7.2.0-posix-seh-rt_v5-rev1\mingw64\bin;%PATH%
-    - ARGS: --toolset=gcc address-model=32 linkflags=-Wl,-allow-multiple-definition cxxstd=03,11,14,1z
+    - ARGS: --toolset=gcc address-model=32 linkflags=-Wl,-allow-multiple-definition
+      CXXSTD: 03,11,14,1z
       PATH: C:\MinGW\bin;%PATH%
-    - ARGS: --toolset=gcc address-model=64 cxxstd=03,11,14,1z
+    - ARGS: --toolset=gcc address-model=64
+      CXXSTD: 03,11,14,1z
       PATH: C:\cygwin64\bin;%PATH%
-    - ARGS: --toolset=gcc address-model=32 cxxstd=03,11,14,1z
+    - ARGS: --toolset=gcc address-model=32
+      CXXSTD: 03,11,14,1z
       PATH: C:\cygwin\bin;%PATH%
 
 install:
@@ -60,6 +66,6 @@ build: off
 
 test_script:
   - cd libs\config\test
-  - ..\..\..\b2 config_info_travis_install %ARGS%
+  - FOR %A in (%CXXSTD%) DO ..\..\..\b2 config_info_travis_install %ARGS% cxxstd=%A
   - config_info_travis
-  - ..\..\..\b2 -j3 %ARGS%
+  - ..\..\..\b2 -j3 %ARGS% cxxstd=%CXXSTD%