diff --git a/chars.go b/chars.go
index 2f155d3..f43bf99 100644
--- a/chars.go
+++ b/chars.go
@@ -4,7 +4,6 @@ import (
 	"strings"
 )
 
-// Validation error.
 var (
 	ErrDisallowedChars = NewError("contains disallowed characters")
 )
diff --git a/email.go b/email.go
index 79a2302..3ddc8c0 100644
--- a/email.go
+++ b/email.go
@@ -4,7 +4,6 @@ import (
 	"regexp"
 )
 
-// Validation error.
 var (
 	ErrInvalidEmail = NewError("invalid email address")
 )
diff --git a/in.go b/in.go
index 12a488a..87fcd2a 100644
--- a/in.go
+++ b/in.go
@@ -1,6 +1,5 @@
 package validate
 
-// Validation error.
 var (
 	ErrValueNotAllowed = NewError("not allowed")
 )
diff --git a/length.go b/length.go
index 0151ad6..db0013a 100644
--- a/length.go
+++ b/length.go
@@ -1,6 +1,5 @@
 package validate
 
-// Validation error.
 var (
 	ErrMustBeLonger  = NewError("must contain at least %d characters")
 	ErrMustBeShorter = NewError("must contain no more than %d characters")
diff --git a/number.go b/number.go
index 6d16321..9db317b 100644
--- a/number.go
+++ b/number.go
@@ -1,6 +1,5 @@
 package validate
 
-// Validation error.
 var (
 	ErrMustBeGreater        = NewError("must be greater than %v")
 	ErrMustBeGreaterOrEqual = NewError("must be greater than or equal to %v")
diff --git a/size.go b/size.go
index b499b5d..fb11dee 100644
--- a/size.go
+++ b/size.go
@@ -1,6 +1,5 @@
 package validate
 
-// Validation error.
 var (
 	ErrMustHaveMoreItems  = NewError("must have at least %d items")
 	ErrMustHaveFewerItems = NewError("must have no more than %d items")
diff --git a/url.go b/url.go
index ff71b8c..e0c30f4 100644
--- a/url.go
+++ b/url.go
@@ -2,7 +2,6 @@ package validate
 
 import "net/url"
 
-// Validation error.
 var (
 	ErrInvalidURL Error = NewError("invalid URL")
 )
diff --git a/uuid.go b/uuid.go
index c1af1df..89ce9ea 100644
--- a/uuid.go
+++ b/uuid.go
@@ -4,7 +4,6 @@ import (
 	"regexp"
 )
 
-// Validation error.
 var (
 	ErrInvalidUUID = NewError("invalid UUID")
 )