--- a/src/DLD-FUNCTIONS/md5sum.cc
+++ b/src/DLD-FUNCTIONS/md5sum.cc
@@ -56,32 +56,32 @@
       std::string str = args(0).string_value();
 
       if (nargin == 2)
-	have_str = args(1).bool_value();
-	
+        have_str = args(1).bool_value();
+        
       if (!error_state)
-	{
-	  if (have_str)
-	    retval = oct_md5 (str);
-	  else
-	    {
-	      file_stat fs (str);
+        {
+          if (have_str)
+            retval = oct_md5 (str);
+          else
+            {
+              file_stat fs (str);
 
-	      if (! fs.exists ())
-		{
-		  std::string tmp = octave_env::make_absolute
-		    (load_path::find_file (str), octave_env::getcwd ());
+              if (! fs.exists ())
+                {
+                  std::string tmp = octave_env::make_absolute
+                    (load_path::find_file (str), octave_env::getcwd ());
 
-		  if (! tmp.empty ())
-		    {
-		      warning_with_id ("Octave:md5sum-file-in-path",
-				       "md5sum: file found in load path");
-		      str = tmp;
-		    }
-		}
+                  if (! tmp.empty ())
+                    {
+                      warning_with_id ("Octave:md5sum-file-in-path",
+                                       "md5sum: file found in load path");
+                      str = tmp;
+                    }
+                }
 
-	      retval = oct_md5_file (str);
-	    }
-	}
+              retval = oct_md5_file (str);
+            }
+        }
     }
 
   return retval;