diff --git a/lib/galaxy/tools/util/gff_util.py b/lib/galaxy/tools/util/gff_util.py
index f2bbbc2da78..a7acbeaf41b 100644
--- a/lib/galaxy/tools/util/gff_util.py
+++ b/lib/galaxy/tools/util/gff_util.py
@@ -13,7 +13,7 @@ class GFFReaderWrapper( NiceReaderWrapper ):
         interval = GenomicInterval( self, line.split( "\t" ), self.chrom_col, self.start_col, self.end_col, self.strand_col, self.default_strand, fix_strand=self.fix_strand )
         # Change from 1-based to 0-based format.
         interval.start -= 1
-        # Add 1 to end to move from open to closed format for end coordinate.
+        # Add 1 to end to move from closed to open format for end coordinate.
         interval.end += 1
         return interval