diff --git a/auto/cc/msvc b/auto/cc/msvc
index 11c4682cf..01d6f7f2f 100644
--- a/auto/cc/msvc
+++ b/auto/cc/msvc
@@ -125,7 +125,7 @@ ngx_objext="obj"
 ngx_binext=".exe"
 
 ngx_long_start='@<<
-        '
+	'
 ngx_long_end='<<'
 ngx_long_regex_cont=' \
 	'