diff --git a/test/Makefile.in b/test/Makefile.in
index 9fc38f230..9fe1c37e3 100644
--- a/test/Makefile.in
+++ b/test/Makefile.in
@@ -152,7 +152,8 @@ testautomation$(EXE): $(srcdir)/testautomation.c \
 		      $(srcdir)/testautomation_syswm.c \
 		      $(srcdir)/testautomation_timer.c \
 		      $(srcdir)/testautomation_video.c \
-		      $(srcdir)/testautomation_hints.c
+		      $(srcdir)/testautomation_hints.c \
+					$(srcdir)/testautomation_math.c
 	$(CC) -o $@ $^ $(CFLAGS) $(LIBS) 
 
 testmultiaudio$(EXE): $(srcdir)/testmultiaudio.c $(srcdir)/testutils.c