diff --git a/doc/api/intl.md b/doc/api/intl.md
index cce6661521c832..1d844500ccebbc 100644
--- a/doc/api/intl.md
+++ b/doc/api/intl.md
@@ -133,7 +133,7 @@ through either:
 
 ICU is able to automatically find and load a variety of data formats, but the
 data must be appropriate for the ICU version, and the file correctly named.
-The most common name for the data file is `icudt5X[bl].dat`, where `5X` denotes
+The most common name for the data file is `icudt6X[bl].dat`, where `6X` denotes
 the intended ICU version, and `b` or `l` indicates the system's endianness.
 Check ["ICU Data"][] article in the ICU User Guide for other supported formats
 and more details on ICU data in general.