diff --git a/man5/acct.5 b/man5/acct.5
index b104ff357..17793afb7 100644
--- a/man5/acct.5
+++ b/man5/acct.5
@@ -159,7 +159,7 @@ the process.
 
 In kernels up to and including 2.6.9,
 a separate accounting record is written for each thread created using
-the the NPTL threading library;
+the NPTL threading library;
 since Linux 2.6.10,
 a single accounting record is written for the entire process
 on termination of the last thread in the process.