diff --git a/panda/src/grutil/Sources.pp b/panda/src/grutil/Sources.pp
index d1ee0f06da..c63873c3dc 100644
--- a/panda/src/grutil/Sources.pp
+++ b/panda/src/grutil/Sources.pp
@@ -1,7 +1,7 @@
 #define OTHER_LIBS interrogatedb:c dconfig:c dtoolconfig:m \
                    dtoolutil:c dtoolbase:c dtool:m prc:c
 
-#define USE_PACKAGES opencv ffmpeg
+#define USE_PACKAGES opencv ffmpeg artoolkit
 
 #begin lib_target
   #define TARGET grutil