diff --git a/humanize.go b/humanize.go
index 311c8be..5100bfb 100644
--- a/humanize.go
+++ b/humanize.go
@@ -7,6 +7,7 @@ import (
 // Humanize returns first letter of sentence capitalized.
 // Common acronyms are capitalized as well.
 // Other capital letters in string are left as provided.
+//
 //	employee_salary = Employee salary
 //	employee_id = employee ID
 //	employee_mobile_number = Employee mobile number
@@ -22,6 +23,10 @@ func (i Ident) Humanize() Ident {
 		return New("")
 	}
 
+	if strings.TrimSpace(i.Original) == "" {
+		return i
+	}
+
 	parts := xappend([]string{}, Titleize(i.Parts[0]))
 	if len(i.Parts) > 1 {
 		parts = xappend(parts, i.Parts[1:]...)
diff --git a/humanize_test.go b/humanize_test.go
index 2186dde..2c97a61 100644
--- a/humanize_test.go
+++ b/humanize_test.go
@@ -21,6 +21,11 @@ func Test_Humanize(t *testing.T) {
 		{"first_Name", "First Name"},
 		{"firstName", "First Name"},
 		{"óbito", "Óbito"},
+		{" ", " "},
+		{"\n", "\n"},
+		{"\r", "\r"},
+		{"\t", "\t"},
+		{" \n\r\t", " \n\r\t"},
 	}
 
 	for _, tt := range table {