diff --git a/src/scripts/ci_build.py b/src/scripts/ci_build.py
index 5cb17ed91af..7811dac4a5a 100755
--- a/src/scripts/ci_build.py
+++ b/src/scripts/ci_build.py
@@ -184,7 +184,7 @@ def sanitize_kv(some_string):
              '--link-method=symlink',
              '--enable-experimental-features',
             #  '--debug',
-             '--with-debug-info', '--msvc-runtime=MD']
+             '--debug-mode', '--msvc-runtime=MDd']
 
     if target in ['shared', 'static']:
         install_prefix = tempfile.mkdtemp(prefix='botan-install-')