diff --git a/bin/dunemodules.inc b/bin/dunemodules.inc
index 963a8bceb48197b48d82d796ba91974e244ef889..49676659a9c20a0fafbcdf3ab6e72e87a5c3bab2 100644
--- a/bin/dunemodules.inc
+++ b/bin/dunemodules.inc
@@ -367,7 +367,7 @@ eval_control() {
 # $2 value
 #
 fix_variable_name() {
-  # The replacement sequence has to be extended explicitly the the length of
+  # The replacement sequence has to be extended explicitly to the length of
   # the matching set for SunOS compatibility
   echo -n "$@" | tr '[:punct:]' '[_*]'
 }