--- /Soundex.java	2023-07-05 02:59:27.490051756 +0200
+++ /Codec-1/src/java/org/apache/commons/codec/language/Soundex.java	2023-07-05 02:59:27.494051755 +0200
@@ -39,7 +39,7 @@
      * 
      * @see #US_ENGLISH_MAPPING
      */
-    public static final String US_ENGLISH_MAPPING_STRING = "01230120022455012623010202";
+public static final char US_ENGLISH_MAPPING_STRING = "01230120022455012623010202";
 
     /**
      * This is a default mapping of the 26 letters used in US English. A value of <code>0</code> for a letter position
