diff --git a/appveyor.yml b/appveyor.yml
index 14214aad1..0a41220b5 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -20,3 +20,4 @@ test_script:
     cd OpenRefine
 
     refine server_test
+    refine extensions_test
diff --git a/build.xml b/build.xml
index a3e2404cd..4ad005eba 100644
--- a/build.xml
+++ b/build.xml
@@ -206,6 +206,7 @@
         </jacoco:report>
     </target>
 
+    <!-- runs the tests for the extensions -->
     <target name="extensions_test" depends="build">
       <ant dir="extensions/" target="test" />
     </target>
diff --git a/refine.bat b/refine.bat
index a0685293d..f06b35dcc 100644
--- a/refine.bat
+++ b/refine.bat
@@ -47,6 +47,7 @@ echo   build ..................... Build OpenRefine
 echo   run ....................... Run OpenRefine
 echo.
 echo   server_test ............... Run the server tests
+echo   extensions_test ........... Run the extensions tests
 echo.
 
 echo   clean ..................... Clean compiled classes
@@ -184,6 +185,7 @@ set ACTION=%1
 
 if ""%ACTION%"" == ""build"" goto doAnt
 if ""%ACTION%"" == ""server_test"" goto doAnt
+if ""%ACTION%"" == ""extensions_test"" goto doAnt
 if ""%ACTION%"" == ""clean"" goto doAnt
 if ""%ACTION%"" == ""distclean"" goto doAnt
 if ""%ACTION%"" == ""run"" goto doRun