diff --git a/cpp/Makefile b/cpp/Makefile
index e4cb5af5c37838f2f7d8882049d02064b6334bbb..569442ea869954ee83b0529705aaccb75384da60 100644
--- a/cpp/Makefile
+++ b/cpp/Makefile
@@ -16,7 +16,6 @@ TARGETS += switchchain_ccm_initialtris
 TARGETS += switchchain_ccm_timeevol
 TARGETS += switchchain_properties
 TARGETS += switchchain_exponent
-TARGETS += switchchain_exponent_new
 TARGETS += switchchain_mixingtime
 TARGETS += switchchain_spectrum
 TARGETS += switchchain_successrates