diff --git a/src/mgxs_header.F90 b/src/mgxs_header.F90
index 46ad181d32..a99939f4c3 100644
--- a/src/mgxs_header.F90
+++ b/src/mgxs_header.F90
@@ -229,7 +229,7 @@ module mgxs_header
 
   ! Energy group structure with increasing energy
   real(8), allocatable :: rev_energy_bins(:)
-  
+
 contains
 
 !===============================================================================