diff --git a/src/Makefile b/src/Makefile
index f0cd401..52c16b7 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -27,7 +27,7 @@ all: test_suite main
 main: main.o $(LIBOBJS) $(CLASSOBJS)
 	$(CC) $^ -o $@ $(CFLAGS) $(DBGFLAG) -I$(INCLUDE) $(OPENMP)
 
-test_suite: test_suite.o $(LIBOBJS)
+test_suite: test_suite.o $(LIBOBJS) $(CLASSOBJS)
 	$(CC) $^ -o $@ $(CFLAGS) $(DBGFLAG) -I$(INCLUDE) $(OPENMP)
 
 # Rule for object files