diff --git a/pandatool/src/egg-palettize/Sources.pp b/pandatool/src/egg-palettize/Sources.pp
index 2cd962ba25..281b58c3c5 100644
--- a/pandatool/src/egg-palettize/Sources.pp
+++ b/pandatool/src/egg-palettize/Sources.pp
@@ -4,6 +4,7 @@
     eggbase progbase
   #define OTHER_LIBS \
     egg:c pgraph:c linmath:c putil:c express:c pnmimage:c pnmimagetypes:c \
+    event:c mathutil:c \
     pandaegg:m panda:m pandaexpress:m \
     dtoolutil:c dtoolbase:c dconfig:c dtoolconfig:m dtool:m pystub
   #define UNIX_SYS_LIBS m