diff --git a/build_scripts/windows/scripts/build.cmd b/build_scripts/windows/scripts/build.cmd
index 7234b1afad6..422e39108bf 100644
--- a/build_scripts/windows/scripts/build.cmd
+++ b/build_scripts/windows/scripts/build.cmd
@@ -109,6 +109,7 @@ for %%i in (%TEMP_SCRATCH_FOLDER%\*.whl) do (
     set ALL_MODULES=!ALL_MODULES! %%i
 )
 echo All modules: %ALL_MODULES%
+%BUILDING_DIR%\python.exe -m pip install --no-warn-script-location --force-reinstall pycparser==2.18
 %BUILDING_DIR%\python.exe -m pip install --no-warn-script-location --no-cache-dir %ALL_MODULES%
 %BUILDING_DIR%\python.exe -m pip install --no-warn-script-location --force-reinstall --upgrade azure-nspkg azure-mgmt-nspkg