diff --git a/fdupes.1 b/fdupes.1
index 56cd6fd..a97acb6 100644
--- a/fdupes.1
+++ b/fdupes.1
@@ -34,10 +34,10 @@ normally, when two or more files point to the same disk area they are
 treated as non-duplicates; this option will change this behavior
 .TP
 .B -G --minsize\fR=\fISIZE\fR
-consider only files greater than or equal to SIZE
+consider only files greater than or equal to SIZE in bytes
 .TP
 .B -L --maxsize=\fR=\fISIZE\fR
-consider only files less than or equal to SIZE
+consider only files less than or equal to SIZE in bytes
 .TP
 .B -n --noempty
 exclude zero-length files from consideration