diff --git a/default.c b/default.c
index 47b7dd34..d6c08a53 100644
--- a/default.c
+++ b/default.c
@@ -523,6 +523,8 @@ static const char *default_variables[] =
     ".LIBPATTERNS", "lib%.a $(DJDIR)/lib/lib%.a",
 #elif defined(__APPLE__)
     ".LIBPATTERNS", "lib%.dylib lib%.a",
+#elif defined(__CYGWIN__) || defined(WINDOWS32)
+    ".LIBPATTERNS", "lib%.dll.a %.dll.a lib%.a %.lib lib%.dll %.dll",
 #else
     ".LIBPATTERNS", "lib%.so lib%.a",
 #endif