diff --git a/man/mu.1 b/man/mu.1
index 6b81fc03..a0382b4b 100644
--- a/man/mu.1
+++ b/man/mu.1
@@ -110,6 +110,10 @@ environment variable to non-empty to enable colors.
 Currently, \fBmu find\fR, \fBmu view\fR, \fBmu cfind\fR and \fBmu extract\fR
 support colors.
 
+.SH ENCODING
+
+\fBmu\fR's output is \fIalways\fR in UTF-8 format.
+
 .SH DATABASE AND FILE
 
 Commands \fBmu index\fR, \fBfind\fR and \fBcleanup\fR work with the database,