diff --git a/dtool/src/parser-inc/Sources.pp b/dtool/src/parser-inc/Sources.pp
index 251bc47545..68c68024b6 100644
--- a/dtool/src/parser-inc/Sources.pp
+++ b/dtool/src/parser-inc/Sources.pp
@@ -14,5 +14,5 @@
     intfloat_readwrite.h mathematics.h rational.h rtp.h \
     rtsp.h rtspcodes.h setjmp.h winsock2.h \
     ode/ode.h collision_trimesh.h  \
-    netinet/tcp.h netinet/ip.h \
+    netinet/tcp.h netinet/ip.h sys/socket.h \
     rfftw.h libtar.h malloc.h ucontext.h ctype.h
diff --git a/dtool/src/parser-inc/socket.h b/dtool/src/parser-inc/socket.h
new file mode 100755
index 0000000000..79d513e07f
--- /dev/null
+++ b/dtool/src/parser-inc/socket.h
@@ -0,0 +1,8 @@
+struct sockaddr_in
+{
+};
+
+typedef struct fd_set {
+        unsigned int fd_count;               /* how many are SET? */
+        SOCKET  fd_array[10];   /* an array of SOCKETs */
+} fd_set;