1 files changed, 1 insertions, 1 deletions
diff --git a/src/os/win32/ngx_errno.c b/src/os/win32/ngx_errno.c
index 30c1b9315..3a9487c06 100644
--- a/src/os/win32/ngx_errno.c
+++ b/src/os/win32/ngx_errno.c
@@ -34,7 +34,7 @@ int ngx_strerror_r(ngx_err_t err, char *errstr, size_t size)
     ngx_err_t  format_error;
 
     len = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM
-                        | FORMAT_MESSAGE_IGNORE_INSERTS,
+                        |FORMAT_MESSAGE_IGNORE_INSERTS,
                         NULL, err,
                         MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
                         errstr, size, NULL);