diff --git a/direct/src/plugin_standalone/Sources.pp b/direct/src/plugin_standalone/Sources.pp
index c66d5b844e..c45c14be40 100644
--- a/direct/src/plugin_standalone/Sources.pp
+++ b/direct/src/plugin_standalone/Sources.pp
@@ -83,6 +83,7 @@
 #end bin_target
 
 #begin bin_target
+  #define BUILD_TARGET $[and $[HAVE_JPEG],$[HAVE_PNG]]
   #define USE_PACKAGES openssl zlib
   #define TARGET p3dembed
   #define LOCAL_LIBS plugin_common p3d_plugin_static