diff --git a/pandatool/src/bam/Sources.pp b/pandatool/src/bam/Sources.pp
index d129c36baf..da901eaa62 100644
--- a/pandatool/src/bam/Sources.pp
+++ b/pandatool/src/bam/Sources.pp
@@ -1,4 +1,4 @@
-#define USE_PACKAGES fftw
+#define USE_PACKAGES fftw cg
 #define OTHER_LIBS \
   egg2pg:c egg:c pandaegg:m \
   pipeline:c recorder:c parametrics:c collide:c chan:c char:c \
diff --git a/pandatool/src/egg-palettize/Sources.pp b/pandatool/src/egg-palettize/Sources.pp
index 08218d4182..c135907fce 100644
--- a/pandatool/src/egg-palettize/Sources.pp
+++ b/pandatool/src/egg-palettize/Sources.pp
@@ -1,3 +1,5 @@
+#define USE_PACKAGES cg  // from gobj.
+
 #define OTHER_LIBS \
   egg:c pandaegg:m \
   pgraph:c gobj:c lerp:c linmath:c putil:c \
diff --git a/pandatool/src/egg-qtess/Sources.pp b/pandatool/src/egg-qtess/Sources.pp
index a7e574d342..b2928e51a1 100644
--- a/pandatool/src/egg-qtess/Sources.pp
+++ b/pandatool/src/egg-qtess/Sources.pp
@@ -1,3 +1,5 @@
+#define USE_PACKAGES cg  // from gobj.
+
 #begin bin_target
   #define TARGET egg-qtess
   #define LOCAL_LIBS \
diff --git a/pandatool/src/ptloader/Sources.pp b/pandatool/src/ptloader/Sources.pp
index 9699c5078c..6f55acd40a 100644
--- a/pandatool/src/ptloader/Sources.pp
+++ b/pandatool/src/ptloader/Sources.pp
@@ -1,3 +1,5 @@
+#define USE_PACKAGES cg  // from gobj.
+
 #begin lib_target
   #define TARGET ptloader
   #define BUILDING_DLL BUILDING_PTLOADER