diff --git a/docs/draft-alakuijala-brotli-07.nroff b/docs/draft-alakuijala-brotli-07.nroff
index 3fcc608..91ab2f5 100644
--- a/docs/draft-alakuijala-brotli-07.nroff
+++ b/docs/draft-alakuijala-brotli-07.nroff
@@ -1277,10 +1277,9 @@ At any given point during decoding the compressed data, a reference
 to a duplicated string in the uncompressed data produced so far has a maximum
 backward distance value, which is the minimum of the window size and
 the number of uncompressed bytes produced. However, decoding a distance
-from the compressed stream, as described in section 4, can produce
-distances that are greater than this maximum allowed value. The
-difference between these distances and the first invalid distance
-value is treated as reference to a word in the static dictionary
+from the compressed stream, as described in Section 4., can produce
+distances that are greater than this maximum allowed value. In this case,
+the distance is treated as a reference to a word in the static dictionary
 given in Appendix A. The copy length for a static dictionary reference
 must be between 4 and 24. The static dictionary has three parts:
 
@@ -1325,7 +1324,7 @@ follows:
 
 The string copied to the uncompressed stream is computed by applying the
 transformation to the base dictionary word. If transform_id is
-greater than 120 or length is smaller than 4 or greater than 24, then
+greater than 120, or the length is smaller than 4 or greater than 24, then
 the compressed stream should be rejected as invalid.
 
 Each word transformation has the following form: