diff --git a/config_host.mk.in b/config_host.mk.in
index 8baece8fb531..5cd8b0dbcede 100644
--- a/config_host.mk.in
+++ b/config_host.mk.in
@@ -153,7 +153,7 @@ export EMSCRIPTEN_WORKERJS=@EMSCRIPTEN_WORKERJS@
 export ENABLE_ANDROID_LOK=@ENABLE_ANDROID_LOK@
 export ENABLE_ANDROID_EDITING=@ENABLE_ANDROID_EDITING@
 export ENABLE_AVAHI=@ENABLE_AVAHI@
-export ENABLE_MSVC_ANALYZE=@ENABLE_MSVC_ANALYZE@
+ENABLE_MSVC_ANALYZE?=@ENABLE_MSVC_ANALYZE@
 export ENABLE_BREAKPAD=@ENABLE_BREAKPAD@
 export DEFAULT_CRASHDUMP_VALUE=@DEFAULT_CRASHDUMP_VALUE@
 export ENABLE_CAIRO_CANVAS=@ENABLE_CAIRO_CANVAS@