diff --git a/recipe/bld.bat b/recipe/bld.bat
index e92da09..9c40600 100644
--- a/recipe/bld.bat
+++ b/recipe/bld.bat
@@ -16,6 +16,7 @@ cmake -G "Ninja" ^
     -DCMAKE_INSTALL_PREFIX="%LIBRARY_PREFIX%" ^
     -DCMAKE_MODULE_PATH="%LIBRARY_PREFIX%/lib/cmake" ^
     -DCMAKE_INSTALL_LIBDIR=lib ^
+    -DCMAKE_WINDOWS_EXPORT_ALL_SYMBOLS=ON ^
     -DGOOGLE_CLOUD_CPP_ENABLE_EXAMPLES=OFF ^
     -DGOOGLE_CLOUD_CPP_ENABLE_WERROR=OFF
 if %ERRORLEVEL% neq 0 exit 1