diff --git a/src/funnel/COPYRIGHT b/src/funnel/COPYRIGHT
index 643ade01ba..fb87f12659 100644
--- a/src/funnel/COPYRIGHT
+++ b/src/funnel/COPYRIGHT
@@ -2,5 +2,5 @@
 
    This file is part of funnel code module.
 
-   The FM code respects the CC BY-NC license. 
+   The FM code respects the CC BY-NC license.
    Users are free to download, adapt and use the code as long as it is not for commercial purposes.
diff --git a/src/funnel/FPS.cpp b/src/funnel/FPS.cpp
index e4d012860b..8b92c4c382 100644
--- a/src/funnel/FPS.cpp
+++ b/src/funnel/FPS.cpp
@@ -3,7 +3,7 @@
 
    This file is part of funnel code module.
 
-   The FM code respects the CC BY-NC license. 
+   The FM code respects the CC BY-NC license.
    Users are free to download, adapt and use the code as long as it is not for commercial purposes.
 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ */
 #include "colvar/Colvar.h"
diff --git a/src/funnel/Funnel.cpp b/src/funnel/Funnel.cpp
index eaa3c4bb30..bb696f88a3 100644
--- a/src/funnel/Funnel.cpp
+++ b/src/funnel/Funnel.cpp
@@ -3,7 +3,7 @@
 
    This file is part of funnel code module.
 
-   The FM code respects the CC BY-NC license. 
+   The FM code respects the CC BY-NC license.
    Users are free to download, adapt and use the code as long as it is not for commercial purposes.
 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ */
 #include "bias/Bias.h"