diff --git a/Configurations/10-main.conf b/Configurations/10-main.conf
index 6c43772ea..53ba0409d 100644
--- a/Configurations/10-main.conf
+++ b/Configurations/10-main.conf
@@ -1455,6 +1455,7 @@ sub vc_wince_info {
                                    release => "-O3 -fomit-frame-pointer"),
         sys_id           => "CYGWIN",
         bn_ops           => "BN_LLONG",
+        thread_scheme    => "pthread",
         perlasm_scheme   => "coff",
         dso_scheme       => "dlfcn",
         shared_target    => "cygwin-shared",
@@ -1470,6 +1471,7 @@ sub vc_wince_info {
                                    release => "-O3"),
         sys_id           => "CYGWIN",
         bn_ops           => "SIXTY_FOUR_BIT_LONG",
+        thread_scheme    => "pthread",
         perlasm_scheme   => "mingw64",
         dso_scheme       => "dlfcn",
         shared_target    => "cygwin-shared",