diff --git a/MagickCore/distribute-cache.c b/MagickCore/distribute-cache.c
index 044d065e55..6094a1abce 100644
--- a/MagickCore/distribute-cache.c
+++ b/MagickCore/distribute-cache.c
@@ -97,6 +97,8 @@
 #define MAGICKCORE_HAVE_DISTRIBUTE_CACHE 1
 #define MAGICKCORE_HAVE_WINSOCK2 1
 #endif
+#else
+#define SOCKET_TYPE SOCKET
 #endif
 
 /*