2 files changed, 2 insertions, 2 deletions

diff --git a/devbuild.cmd b/devbuild.cmd
index 2f8ee880..06239807 100644
--- a/devbuild.cmd
+++ b/devbuild.cmd
@@ -6,11 +6,10 @@ pushd %~dp0
 :parse_args
 if /i "%1"=="release" set _C=Release
 if /i "%1"=="inc" set _INCREMENTAL=1
-if /i "%1"=="incremental" set _INCREMENTAL=1
 if /i "%1"=="clean" set _INCREMENTAL= & set _CLEAN=1
 if not "%1"=="" shift & goto parse_args
 
-if not "%_INCREMENTAL"=="1" call src\clean.cmd
+if not "%_INCREMENTAL%"=="1" call src\clean.cmd
 if not "%_CLEAN%"=="" goto end
 
 src\build_all.cmd %_C%
diff --git a/src/clean.cmd b/src/clean.cmd
index 9c4fa0dc..9eccf22a 100644
--- a/src/clean.cmd
+++ b/src/clean.cmd
@@ -25,6 +25,7 @@ if exist "%_NUGET_CACHE%\wixtoolset.bootstrappercore.native" rd /s/q "%_NUGET_CA
 if exist "%_NUGET_CACHE%\wixtoolset.burn" rd /s/q "%_NUGET_CACHE%\wixtoolset.burn"
 if exist "%_NUGET_CACHE%\wixtoolset.core" rd /s/q "%_NUGET_CACHE%\wixtoolset.core"
 if exist "%_NUGET_CACHE%\wixtoolset.core.burn" rd /s/q "%_NUGET_CACHE%\wixtoolset.core.burn"
+if exist "%_NUGET_CACHE%\wixtoolset.core.extensioncache" rd /s/q "%_NUGET_CACHE%\wixtoolset.core.extensioncache"
 if exist "%_NUGET_CACHE%\wixtoolset.core.native" rd /s/q "%_NUGET_CACHE%\wixtoolset.core.native"
 if exist "%_NUGET_CACHE%\wixtoolset.core.testpackage" rd /s/q "%_NUGET_CACHE%\wixtoolset.core.testpackage"
 if exist "%_NUGET_CACHE%\wixtoolset.core.windowsinstaller" rd /s/q "%_NUGET_CACHE%\wixtoolset.core.windowsinstaller"