diff --git a/testsuite/expect/test4.3 b/testsuite/expect/test4.3
index 6972aeda82dbd8524c0790b12ffe4e7848926e49..f0bcabf77ef1101709b2fa297acdfa993ad88c67 100755
--- a/testsuite/expect/test4.3
+++ b/testsuite/expect/test4.3
@@ -197,7 +197,9 @@ if {$matches != 6} {
 #
 # Check the sinfo long format
 #
-
+if {[info exists env(SINFO_FORMAT)]} {
+    unset env(SINFO_FORMAT)
+}
 set matches     0
 spawn $sinfo --long
 expect {