1 files changed, 1 insertions, 1 deletions
diff --git a/HACKING b/HACKING
index a57fd975af..c7e6895b03 100644
--- a/HACKING
+++ b/HACKING
@@ -149,7 +149,7 @@ Full optimisation
 -----------------
 
 To turn up everything to the max, for running performance tests for
-example, try theses:
+example, try these:
 
   SRC_HC_OPTS  = -H64m -O2 
   GhcLibHcOpts = -O2