Index: head/cddl/usr.sbin/dtrace/tests/common/proc/Makefile
===================================================================
--- head/cddl/usr.sbin/dtrace/tests/common/proc/Makefile	(revision 291964)
+++ head/cddl/usr.sbin/dtrace/tests/common/proc/Makefile	(revision 291965)
@@ -1,29 +1,29 @@
 # $FreeBSD$
 
 #
 # This Makefile was generated by $srcdir/cddl/usr.sbin/dtrace/tests/tools/genmakefiles.sh.
 #
 
 TESTFILES= \
      tst.create.ksh  \
      tst.discard.ksh  \
      tst.exec.ksh  \
      tst.execfail.ENOENT.ksh  \
      tst.execfail.ksh  \
      tst.exitcore.ksh  \
      tst.exitexit.ksh  \
      tst.exitkilled.ksh  \
      tst.signal.ksh  \
      tst.sigwait.d  \
      tst.startexit.ksh  \
 
 TESTEXES= \
 
 
 CFILES= \
      tst.sigwait.c  \
 
 
-LIBADD.tst.sigwait.exe=rt
+LIBADD.tst.sigwait.exe+= rt
 
 .include "../../dtrace.test.mk"