diff --git a/src/cell.c b/src/cell.c
index 60ab89c0d0078d9de7f1c606e957e2d274077eb5..6c4973c4a7bf6f7a52c69ff624905cb0c0629008 100644
--- a/src/cell.c
+++ b/src/cell.c
@@ -69,7 +69,7 @@
 /* Global variables. */
 int cell_next_tag = 0;
 
-/** List of cell pairs for sub-cell recursion. For any sid, the entries in 
+/** List of cell pairs for sub-cell recursion. For any sid, the entries in
  * this array contain the number of sub-cell pairs and the indices and sid
  * of the sub-cell pairs themselves. */
 struct cell_split_pair cell_split_pairs[13] = {