diff --git a/pkg/generator/latex.go b/pkg/generator/latex.go
index 180851f..e3222d2 100644
--- a/pkg/generator/latex.go
+++ b/pkg/generator/latex.go
@@ -15,9 +15,9 @@ func replaceUnescapedChar(str string) string {
 		"$", "{\\$}",
 		"{", "{\\{}",
 		"}", "{\\}}",
-		"\\", "\\textbackslash",
-		"^", "\\textasciicircum",
-		"~", "\\textasciitilde",
+		"\\", "{\\textbackslash}",
+		"^", "{\\textasciicircum}",
+		"~", "{\\textasciitilde}",
 	)
 
 	return s.Replace(str)
diff --git a/pkg/generator/latex_test.go b/pkg/generator/latex_test.go
index 3025f3c..955f1b0 100644
--- a/pkg/generator/latex_test.go
+++ b/pkg/generator/latex_test.go
@@ -7,7 +7,7 @@ import (
 func TestReplaceUnescapeChar(t *testing.T) {
 	test := `#$%&\_{}^~`
 	actual := replaceUnescapedChar(test)
-	expected := `{\#}{\$}{\%}{\&}\textbackslash{\_}{\{}{\}}\textasciicircum\textasciitilde`
+	expected := `{\#}{\$}{\%}{\&}{\textbackslash}{\_}{\{}{\}}{\textasciicircum}{\textasciitilde}`
 	if actual != expected {
 		t.Errorf("failed when replacing escape character, got: %s, expected: %s", actual, expected)
 	}