diff --git a/Sources/HummingbirdMustache/String.swift b/Sources/HummingbirdMustache/String.swift
index 05940c3..4d6408f 100644
--- a/Sources/HummingbirdMustache/String.swift
+++ b/Sources/HummingbirdMustache/String.swift
@@ -5,7 +5,7 @@ extension String {
         ">": ">",
         "&": "&",
         "\"": """,
-        "'": "'",
+        "'": "'",
     ]
     /// HTML escape string. Replace '<', '>' and '&' with HTML escaped versions
     func htmlEscape() -> String {