diff --git a/Overlap/config_graph.f90 b/Overlap/config_graph.f90
index e322ae1bd60e401117536e2e9609a63ddb44a8ef..c4a140dc9c4e4f98f896872e0f7db38e0ec7d0f1 100644
--- a/Overlap/config_graph.f90
+++ b/Overlap/config_graph.f90
@@ -10,7 +10,7 @@ module config_graph_m
 
   integer, protected:: dist_lim = 12
   ! We look for an overlapping eddy at dist_lim (in grid points) of
-  ! the first extremum.
+  ! the extremum of a given eddy.
 
   logical, protected:: cyclone = .true.