diff --git a/icu4c/data/ibm-1361.ucm b/icu4c/data/ibm-1361.ucm
index ea53671a87..7b81e53e1d 100644
--- a/icu4c/data/ibm-1361.ucm
+++ b/icu4c/data/ibm-1361.ucm
@@ -154,6 +154,7 @@ CHARMAP
 <U0059>  \x59       # LY020000
 <U005A>  \x5A       # LZ020000
 <U005B>  \x5B       # SM060000
+<U20A9>  \x5C       
 <U005D>  \x5D       # SM080000
 <U005E>  \x5E       # SD150000
 <U005F>  \x5F       # SP090000
diff --git a/icu4c/source/data/mappings/ibm-1361.ucm b/icu4c/source/data/mappings/ibm-1361.ucm
index ea53671a87..7b81e53e1d 100644
--- a/icu4c/source/data/mappings/ibm-1361.ucm
+++ b/icu4c/source/data/mappings/ibm-1361.ucm
@@ -154,6 +154,7 @@ CHARMAP
 <U0059>  \x59       # LY020000
 <U005A>  \x5A       # LZ020000
 <U005B>  \x5B       # SM060000
+<U20A9>  \x5C       
 <U005D>  \x5D       # SM080000
 <U005E>  \x5E       # SD150000
 <U005F>  \x5F       # SP090000