diff --git a/lib/Git/IssueManager/Issue.pm b/lib/Git/IssueManager/Issue.pm
index 4384042..c44c81c 100644
--- a/lib/Git/IssueManager/Issue.pm
+++ b/lib/Git/IssueManager/Issue.pm
@@ -50,7 +50,7 @@ The default value is B<low>.
 has 'priority' => (is => 'rw', isa => 'Str', default => 'low', trigger => sub {
             my ($self, $new, $old) = @_;
 
-            die("unknown value (" . $new . ")") unless lc($new) eq "urgent" || lc($new) eq "high" ||
+            die("unknown value in priority (" . $new . ")") unless lc($new) eq "urgent" || lc($new) eq "high" ||
                                                        lc($new) eq "medium" || lc($new) eq "low";
 });
 
@@ -76,7 +76,7 @@ The default value is B<low>
 has 'severity' => (is => 'rw', isa => 'Str', default => 'low',trigger => sub {
             my ($self, $new, $old) = @_;
 
-            die("unknown value (" . $new . ")") unless lc($new) eq "critical" || lc($new) eq "high" ||
+            die("unknown value in severity (" . $new . ")") unless lc($new) eq "critical" || lc($new) eq "high" ||
                                                        lc($new) eq "medium" || lc($new) eq "low";
 });
 
@@ -106,7 +106,7 @@ The default values is B<bug>.
 has 'type' => (is => 'rw', isa => 'Str', default => 'bug', trigger => sub {
             my ($self, $new, $old) = @_;
 
-            die("unknown value (" . $new . ")") unless lc($new) eq "bug" || lc($new) eq "security-bug" ||
+            die("unknown value in type (" . $new . ")") unless lc($new) eq "bug" || lc($new) eq "security-bug" ||
                                                        lc($new) eq "improvement" || lc($new) eq "feature" ||
                                                        lc($new) eq "task" || lc($$new) eq "epic";
 });
@@ -133,7 +133,7 @@ The default value is B<open>.
 has 'status' => (is => 'rw', isa => 'Str', default => 'open', trigger => sub {
             my ($self, $new, $old) = @_;
 
-            die("unknown value (" . $new . ")") unless lc($new) eq "open" || lc($new) eq "assigned" ||
+            die("unknown value in status (" . $new . ")") unless lc($new) eq "open" || lc($new) eq "assigned" ||
                                                        lc($new) eq "inprogress" || lc($new) eq "closed";
 });
 
@@ -157,7 +157,7 @@ The default value is B<none>.
 has 'substatus'  => (is => 'rw', isa => 'Str', default => 'none', trigger => sub {
             my ($self, $new, $old) = @_;
 
-            die("unknown value (" . $new . ")") unless lc($new) eq "none" || lc($new) eq "fixed" ||
+            die("unknown value in substatus (" . $new . ")") unless lc($new) eq "none" || lc($new) eq "fixed" ||
                                                        lc($new) eq "wontfix";
 });