diff --git a/cddl/usr.sbin/dtrace/tests/dtrace.test.mk b/cddl/usr.sbin/dtrace/tests/dtrace.test.mk
index aaeba61e103e..0da134c0cbc2 100644
--- a/cddl/usr.sbin/dtrace/tests/dtrace.test.mk
+++ b/cddl/usr.sbin/dtrace/tests/dtrace.test.mk
@@ -1,7 +1,8 @@
 # $FreeBSD$
 
 TESTGROUP= ${.CURDIR:H:T}/${.CURDIR:T}
-TESTSRC= ${SRCTOP}/cddl/contrib/opensolaris/cmd/dtrace/test/tst/${TESTGROUP}
+TESTBASE= ${SRCTOP}/cddl/contrib/opensolaris/cmd/dtrace/test/tst
+TESTSRC= ${TESTBASE}/${TESTGROUP}
 TESTSDIR= ${TESTSBASE}/cddl/usr.sbin/dtrace/${TESTGROUP}
 
 FILESGROUPS+=	${TESTGROUP}EXE
@@ -18,7 +19,8 @@ TEST_METADATA.t_dtrace_contrib+= required_user="root"
 GENTEST?=	${.CURDIR:H:H}/tools/gentest.sh
 EXCLUDE=	${.CURDIR:H:H}/tools/exclude.sh
 ${TESTWRAPPER}.sh: ${GENTEST} ${EXCLUDE} ${${PACKAGE}FILES}
-	sh ${GENTEST} -e ${EXCLUDE} ${TESTGROUP} ${${PACKAGE}FILES:S/ */ /} > ${.TARGET}
+	env TESTBASE=${TESTBASE:Q} \
+	    sh ${GENTEST} -e ${EXCLUDE} ${TESTGROUP} ${${PACKAGE}FILES:S/ */ /} > ${.TARGET}
 
 CLEANFILES+=	${TESTWRAPPER}.sh
 
diff --git a/cddl/usr.sbin/dtrace/tests/tools/exclude.sh b/cddl/usr.sbin/dtrace/tests/tools/exclude.sh
index db5796039a0d..5767865429e8 100755
--- a/cddl/usr.sbin/dtrace/tests/tools/exclude.sh
+++ b/cddl/usr.sbin/dtrace/tests/tools/exclude.sh
@@ -23,7 +23,22 @@
 
 exclude()
 {
-    eval $1=\"\$$1\\n$2\"
+    case $2 in
+    # Handle globbing later
+    *"*"*) ;;
+    # No globbing needed
+    *)
+        eval $1=\"\$$1\\n$2\"
+        return
+        ;;
+    esac
+    for file in ${TESTBASE}/${2}; do
+        case ${file} in
+            # Invalid glob
+            "${TESTBASE}/${2}") echo "Invalid exclude for $2" >&2; exit 1; ;;
+        esac
+        exclude "$1" "${file##${TESTBASE}/}"
+    done
 }
 
 exclude EXFAIL common/aggs/tst.subr.d