diff --git a/libexec/portzap/isportzap-member b/libexec/portzap/isportzap-member
index 593e357..4ce02cf 100644
--- a/libexec/portzap/isportzap-member
+++ b/libexec/portzap/isportzap-member
@@ -5,5 +5,5 @@ set -e
 # main
 group="_portzap"
 mygroups=$(id -Gn | tr ' ' '\n')
-echo "${mygroups}" | grep -e "^${group}$" > /dev/null 2>&1
+anymatch=$(echo "${mygroups}" | grep -e "^${group}$")
 exit "${?}"
diff --git a/libexec/portzap/portzap-checkout b/libexec/portzap/portzap-checkout
index a18a6f2..ee0f234 100644
--- a/libexec/portzap/portzap-checkout
+++ b/libexec/portzap/portzap-checkout
@@ -29,7 +29,7 @@ if [ "$(id -u)" = "0" ]; then
     exit 1
 fi
 
-if ! "${libexec}"/isportzap-member; then
+if ! "${libexec}"/isportzap-member > /dev/null 2>&1; then
     printerr "$(id -un) is not a member of _portzap"
     exit 1
 fi
diff --git a/libexec/portzap/portzap-clone b/libexec/portzap/portzap-clone
index 48971c2..27f6d30 100755
--- a/libexec/portzap/portzap-clone
+++ b/libexec/portzap/portzap-clone
@@ -34,7 +34,7 @@ if [ "$(id -u)" = "0" ]; then
     exit 1
 fi
 
-if ! "${libexec}"/isportzap-member; then
+if ! "${libexec}"/isportzap-member > /dev/null 2>&1; then
     printerr "$(id -un) is not a member of _portzap"
     exit 1
 fi
diff --git a/libexec/portzap/portzap-pull b/libexec/portzap/portzap-pull
index 683fd62..63346a4 100755
--- a/libexec/portzap/portzap-pull
+++ b/libexec/portzap/portzap-pull
@@ -32,7 +32,7 @@ if [ "$(id -u)" = "0" ]; then
     exit 1
 fi
 
-if ! "${libexec}"/isportzap-member; then
+if ! "${libexec}"/isportzap-member > /dev/null 2>&1; then
     printerr "$(id -un) is not a member of _portzap"
     exit 1
 fi