diff --git a/libexec/mcd/mcd---fail b/libexec/mcd/mcd---fail
index 5fb67f2..864d878 100755
--- a/libexec/mcd/mcd---fail
+++ b/libexec/mcd/mcd---fail
@@ -1,7 +1,6 @@
 #!/usr/bin/env bash
 set -e
 err=${1##*/}
-act=${err%\:*}
-echo "Error:${err#*\:}" >&2; echo >&2
+echo $err >&2; echo >&2
 mcd >&2 ${act#*-} --help
 exit 1
diff --git a/libexec/mcd/mcd-cdp-dai b/libexec/mcd/mcd-cdp-dai
index fe86022..40cb360 100755
--- a/libexec/mcd/mcd-cdp-dai
+++ b/libexec/mcd/mcd-cdp-dai
@@ -2,7 +2,7 @@
 set -e
 case $1 in
   exit) {
-    [ -n "$2" ] || mcd --fail "cdp: Please specify a dai amount"
+    [ -n "$2" ] || mcd --fail "mcd-cdp: Please specify a dai amount"
     wad=$(seth --to-uint256 $(seth --to-hex $(seth --to-wei "$2 eth")))
     if [[ $MCD_PROXY == yes ]]; then
       sig="exit(address,address,uint,address,uint)"
diff --git a/libexec/mcd/mcd-cdp-gem b/libexec/mcd/mcd-cdp-gem
index 42b2e8a..c36e6e3 100755
--- a/libexec/mcd/mcd-cdp-gem
+++ b/libexec/mcd/mcd-cdp-gem
@@ -2,7 +2,7 @@
 set -e
 case $1 in
   exit) {
-    [ -n "$2" ] || mcd --fail "cdp: Please specify a gem amount"
+    [ -n "$2" ] || mcd --fail "mcd-cdp: Please specify a gem amount"
     join=$(mcd gem adapter)
     wad=$(seth --to-uint256 $(seth --to-hex $(seth --to-wei "$2 eth")))
     if [[ $MCD_PROXY == yes ]]; then
diff --git a/libexec/mcd/mcd-dai-exit b/libexec/mcd/mcd-dai-exit
index e080bd1..7e0c719 100755
--- a/libexec/mcd/mcd-dai-exit
+++ b/libexec/mcd/mcd-dai-exit
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 set -e
-[ -n "$1" ] || mcd --fail "dai: Please specify an exit amount"
+[ -n "$1" ] || mcd --fail "mcd-dai: Please specify an exit amount"
 
 urn=$(mcd --require-urn dai)
 guy=$(mcd --to-address ${2:-$ETH_FROM})
diff --git a/libexec/mcd/mcd-dai-join b/libexec/mcd/mcd-dai-join
index 75c9d92..035c7ec 100755
--- a/libexec/mcd/mcd-dai-join
+++ b/libexec/mcd/mcd-dai-join
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 set -e
-[ -n "$1" ] || mcd --fail "dai: Please specify a join amount"
+[ -n "$1" ] || mcd --fail "mcd-dai: Please specify a join amount"
 
 approve() {
   seth send "$MCD_DAI" "approve(address)" $MCD_JOIN_DAI
diff --git a/libexec/mcd/mcd-gem-exit b/libexec/mcd/mcd-gem-exit
index d324ea6..b7df93f 100755
--- a/libexec/mcd/mcd-gem-exit
+++ b/libexec/mcd/mcd-gem-exit
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 set -e
-[ -n "$1" ] || mcd --fail "gem: Please specify an exit amount"
+[ -n "$1" ] || mcd --fail "mcd-gem: Please specify an exit amount"
 
 urn=$(mcd --require-urn gem)
 guy=$(mcd --to-address ${2:-$ETH_FROM})
diff --git a/libexec/mcd/mcd-gem-join b/libexec/mcd/mcd-gem-join
index 0e57238..cb71123 100755
--- a/libexec/mcd/mcd-gem-join
+++ b/libexec/mcd/mcd-gem-join
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 set -e
-[ -n "$1" ] || mcd --fail "gem: Please specify a join amount"
+[ -n "$1" ] || mcd --fail "mcd-gem: Please specify a join amount"
 
 mcd---require-ilk-opt
 
diff --git a/libexec/mcd/mcd-unwrap b/libexec/mcd/mcd-unwrap
index 881f73a..6313de5 100755
--- a/libexec/mcd/mcd-unwrap
+++ b/libexec/mcd/mcd-unwrap
@@ -3,7 +3,7 @@
 ### Usage: mcd unwrap <amount>
 set -e
 mcd --require-from $0 &>/dev/null
-[ -n "$1" ] || mcd --fail "wrap: Please specify an amount to wrap"
+[ -n "$1" ] || mcd --fail "mcd-wrap: Please specify an amount to wrap"
 seth send ${ETH?} 'withdraw(uint)' $(seth --to-word $(seth --to-wei "$1 eth"))
 
 [[ $SETH_ASYNC == yes ]] && exit 1
diff --git a/libexec/mcd/mcd-wrap b/libexec/mcd/mcd-wrap
index 658247c..1c3b6a3 100755
--- a/libexec/mcd/mcd-wrap
+++ b/libexec/mcd/mcd-wrap
@@ -3,7 +3,7 @@
 ### Usage: mcd wrap <amount>
 set -e
 mcd --require-from $0 &>/dev/null
-[ -n "$1" ] || mcd --fail "wrap: Please specify an amount to wrap"
+[ -n "$1" ] || mcd --fail "mcd-wrap: Please specify an amount to wrap"
 seth send ${ETH?} --value $(seth --to-wei "$1 eth")
 
 [[ $SETH_ASYNC == yes ]] && exit 1