diff --git a/src/Makefile b/src/Makefile
index 996e9d8..36ae301 100755
--- a/src/Makefile
+++ b/src/Makefile
@@ -9,7 +9,7 @@ SHAREDIR=$(DESTDIR)/usr/share/a2pi
 endif
 BIN=a2joy a2joymou a2joypad a2mon a2term fusea2pi a2pidcmd dskread dskwrite bload brun nibread dskformat eddread
 SBIN=a2pid
-A2PIDEFS=-DSETSERCLK
+# A2PIDEFS=-DSETSERCLK
 
 all: $(BIN) $(SBIN)