diff --git a/bin/sh/tests/builtins/cd10.0 b/bin/sh/tests/builtins/cd10.0
index f4b5e0ffca5c..5c165cb21fcc 100644
--- a/bin/sh/tests/builtins/cd10.0
+++ b/bin/sh/tests/builtins/cd10.0
@@ -1,6 +1,6 @@
 # $FreeBSD$
 
 # Precondition
 (cd /bin) || exit
 # Verify write error is ignored.
-$SH +m -ic 'CDPATH=/:; cd bin 1</dev/null'
+ENV= $SH +m -ic 'CDPATH=/:; cd bin 1</dev/null'
diff --git a/bin/sh/tests/builtins/fc1.0 b/bin/sh/tests/builtins/fc1.0
index ab7a387b5077..df4852f0b8ac 100644
--- a/bin/sh/tests/builtins/fc1.0
+++ b/bin/sh/tests/builtins/fc1.0
@@ -1,27 +1,27 @@
 # $FreeBSD$
 set -e
 trap 'echo Broken pipe -- test failed' PIPE
 
 P=${TMPDIR:-/tmp}
 cd $P
 T=$(mktemp -d sh-test.XXXXXX)
 cd $T
 
 mkfifo input output error
-HISTFILE=/dev/null ${SH} +m -i <input >output 2>error &
+ENV= HISTFILE=/dev/null ${SH} +m -i <input >output 2>error &
 {
 	# Syntax error
 	echo ')' >&3
 	# Read error message, shell will read new input now
 	read dummy <&5
 	# Execute bad command again
 	echo 'fc -e true' >&3
 	# Verify that the shell is still running
 	echo 'echo continued' >&3 || rc=3
 	echo 'exit' >&3 || rc=3
 	read line <&4 && [ "$line" = continued ] && : ${rc:=0}
 } 3>input 4<output 5<error
 
 rm input output error
 rmdir ${P}/${T}
 exit ${rc:-3}
diff --git a/bin/sh/tests/execution/int-cmd1.0 b/bin/sh/tests/execution/int-cmd1.0
index a1f097b774d6..6b1d366b2e7a 100644
--- a/bin/sh/tests/execution/int-cmd1.0
+++ b/bin/sh/tests/execution/int-cmd1.0
@@ -1,3 +1,3 @@
 # $FreeBSD$
 
-! echo echo bad | $SH -ic 'fi' 2>/dev/null
+! echo echo bad | ENV= $SH -ic 'fi' 2>/dev/null