diff --git a/Makefile b/Makefile
index d02f502..c816215 100644
--- a/Makefile
+++ b/Makefile
@@ -4,11 +4,13 @@ CXXLIBS=-lGL -lGLU -lglut
 
 # In `TARGET`, list the names of the `main_[stuff].cpp` you'd like to compile
 # into a `[stuff].bin`.
-TARGETS=glut
+TARGETS=glut ball
 
 OBJS=Implicit.o \
 	 common_structures.o \
 	 Mesh.o \
+	 spheroid.o \
+	 Ball.o \
 	 util/ObjParser.o \
 	 MarchingCubes.o \
 	 _gen/marching_cubes_data.o \