diff --git a/panda/metalibs/panda/Sources.pp b/panda/metalibs/panda/Sources.pp
index f3c2809225..b0aff217ff 100644
--- a/panda/metalibs/panda/Sources.pp
+++ b/panda/metalibs/panda/Sources.pp
@@ -7,6 +7,7 @@
 #define DIR_TYPE metalib
 #define BUILDING_DLL BUILDING_PANDA
 #define USE_PACKAGES net
+#define WIN_SYS_LIBS $[WIN_SYS_LIBS] Ws2_32.lib
 
 #define COMPONENT_LIBS \
     pgraph \
diff --git a/panda/src/display/Sources.pp b/panda/src/display/Sources.pp
index 0dc4414719..2f3b347114 100644
--- a/panda/src/display/Sources.pp
+++ b/panda/src/display/Sources.pp
@@ -1,5 +1,6 @@
 #define OTHER_LIBS interrogatedb:c dconfig:c dtoolconfig:m \
                    dtoolutil:c dtoolbase:c dtool:m
+#define WIN_SYS_LIBS $[WIN_SYS_LIBS] Ws2_32.lib
                    
 #begin lib_target
   #define TARGET display