diff --git a/elab_expr.cc b/elab_expr.cc
index 8aa97435c..fa3e7d6f3 100644
--- a/elab_expr.cc
+++ b/elab_expr.cc
@@ -3003,7 +3003,7 @@ NetExpr* PECallFunction::elaborate_expr_method_(Design*des, NetScope*scope,
 	    const index_component_t&use_index = search_results.path_item.index.back();
 	    ivl_assert(*this, use_index.msb != 0);
 	    ivl_assert(*this, use_index.lsb == 0);
-	    
+
 	    NetExpr*mux = elab_and_eval(des, scope, use_index.msb, -1, false);
 	    if (!mux)
 		  return 0;
diff --git a/make_ivl_type.cc b/make_ivl_type.cc
index 921d63487..963a5eace 100644
--- a/make_ivl_type.cc
+++ b/make_ivl_type.cc
@@ -1,4 +1,3 @@
-
 /*
  * Copyright (c) 2012-2014 Stephen Williams (steve@icarus.com)
  *
@@ -22,7 +21,7 @@
 # include  "netscalar.h"
 # include  "netvector.h"
 
-ivl_type_t make_ivl_type(ivl_variable_type_t vt, 
+ivl_type_t make_ivl_type(ivl_variable_type_t vt,
 			 const std::vector<netrange_t>&packed_dimensions,
 			 bool signed_flag, bool isint_flag)
 {
diff --git a/nettypes.h b/nettypes.h
index f5b9f7287..48ce48fd2 100644
--- a/nettypes.h
+++ b/nettypes.h
@@ -1,7 +1,7 @@
 #ifndef IVL_nettypes_H
 #define IVL_nettypes_H
 /*
- * Copyright (c) 2012-2014 Stephen Williams (steve@icarus.com)
+ * Copyright (c) 2012-2021 Stephen Williams (steve@icarus.com)
  *
  *    This source code is free software; you can redistribute it
  *    and/or modify it in source code form under the terms of the GNU
@@ -62,7 +62,7 @@ class ivl_type_s {
 /*
  * Convenience functions for making ivl_type_t objects from various inputs.
  */
-extern ivl_type_t make_ivl_type(ivl_variable_type_t vt, 
+extern ivl_type_t make_ivl_type(ivl_variable_type_t vt,
 				const std::vector<netrange_t>&packed_dimensions,
 				bool signed_flag =false, bool isint_flag =false);