diff --git a/Shorewall/known_problems.txt b/Shorewall/known_problems.txt
index 5fbb15bdc..38fadfd7c 100644
--- a/Shorewall/known_problems.txt
+++ b/Shorewall/known_problems.txt
@@ -47,7 +47,7 @@
     Corrected in 4.4.5.4.
 
 6)  Under rare and not fully-understood circumstances, the Netfilter
-    ruleset generated by Shorewall can include jumps to non-exitent
+    ruleset generated by Shorewall can include jumps to non-existent
     chains. This problem was apparently introduced between 4.4.0 and
     4.4.5.