diff --git a/translations/en/en.go b/translations/en/en.go
index 5784d1f6..ee05f915 100644
--- a/translations/en/en.go
+++ b/translations/en/en.go
@@ -1351,6 +1351,11 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 				return t
 			},
 		},
+		{
+			tag:         "boolean",
+			translation: "{0} must be a valid boolean value",
+			override:    false,
+		},
 	}
 
 	for _, t := range translations {
diff --git a/translations/en/en_test.go b/translations/en/en_test.go
index 4c1d605a..9cb6deb5 100644
--- a/translations/en/en_test.go
+++ b/translations/en/en_test.go
@@ -151,6 +151,7 @@ func TestTranslations(t *testing.T) {
 		PostCode          string            `validate:"postcode_iso3166_alpha2=SG"`
 		PostCodeCountry   string
 		PostCodeByField   string `validate:"postcode_iso3166_alpha2_field=PostCodeCountry"`
+		BooleanString     string `validate:"boolean"`
 	}
 
 	var test Test
@@ -203,6 +204,7 @@ func TestTranslations(t *testing.T) {
 	test.UniqueSlice = []string{"1234", "1234"}
 	test.UniqueMap = map[string]string{"key1": "1234", "key2": "1234"}
 	test.Datetime = "2008-Feb-01"
+	test.BooleanString = "A"
 
 	test.Inner.RequiredIf = "abcd"
 
@@ -684,6 +686,10 @@ func TestTranslations(t *testing.T) {
 			ns:       "Test.PostCodeByField",
 			expected: "PostCodeByField does not match postcode format of country in PostCodeCountry field",
 		},
+		{
+			ns:       "Test.BooleanString",
+			expected: "BooleanString must be a valid boolean value",
+		},
 	}
 
 	for _, tt := range tests {
diff --git a/translations/pt_BR/pt_BR.go b/translations/pt_BR/pt_BR.go
index ef044963..d6883aa9 100644
--- a/translations/pt_BR/pt_BR.go
+++ b/translations/pt_BR/pt_BR.go
@@ -1316,6 +1316,11 @@ func RegisterDefaultTranslations(v *validator.Validate, trans ut.Translator) (er
 				return s
 			},
 		},
+		{
+			tag:         "boolean",
+			translation: "{0} deve ser um valor booleano válido",
+			override:    false,
+		},
 	}
 
 	for _, t := range translations {
diff --git a/translations/pt_BR/pt_BR_test.go b/translations/pt_BR/pt_BR_test.go
index c8a64826..426f2468 100644
--- a/translations/pt_BR/pt_BR_test.go
+++ b/translations/pt_BR/pt_BR_test.go
@@ -139,6 +139,7 @@ func TestTranslations(t *testing.T) {
 		StrPtrGte         *string   `validate:"gte=10"`
 		OneOfString       string    `validate:"oneof=red green"`
 		OneOfInt          int       `validate:"oneof=5 63"`
+		BooleanString     string    `validate:"boolean"`
 	}
 
 	var test Test
@@ -171,6 +172,7 @@ func TestTranslations(t *testing.T) {
 	test.AlphanumString = "abc3!"
 	test.NumericString = "12E.00"
 	test.NumberString = "12E"
+	test.BooleanString = "A"
 
 	test.Excludes = "este é um texto de teste"
 	test.ExcludesAll = "Isso é Ótimo!"
@@ -619,6 +621,10 @@ func TestTranslations(t *testing.T) {
 			ns:       "Test.OneOfInt",
 			expected: "OneOfInt deve ser um de [5 63]",
 		},
+		{
+			ns:       "Test.BooleanString",
+			expected: "BooleanString deve ser um valor booleano válido",
+		},
 	}
 
 	for _, tt := range tests {