diff --git a/man3/a64l.3 b/man3/a64l.3
index b0b986c61..3578a755a 100644
--- a/man3/a64l.3
+++ b/man3/a64l.3
@@ -37,7 +37,7 @@ and
 .BR a64l ()
 sign-extends its 32-bit result.
 .LP
-The 64 digits in the base 64 system are:
+The 64 digits in the base-64 system are:
 .RS
 .nf