diff --git a/src/Makefile.am b/src/Makefile.am
index 94134c94..8d9fd034 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -211,7 +211,7 @@ if TUNEMU
 LIBS += -lpcap
 endif
 
-AM_CFLAGS = -DCONFDIR=\"$(sysconfdir)\" -DLOCALSTATEDIR=\"$(localstatedir)\" -DSBINDIR=\"$(sbindir)\" -iquote. -fsanitize=undefined
+AM_CFLAGS = -DCONFDIR=\"$(sysconfdir)\" -DLOCALSTATEDIR=\"$(localstatedir)\" -DSBINDIR=\"$(sbindir)\" -iquote.
 if OPENBSD
 AM_CFLAGS += -fstack-protector-all
 endif