diff --git a/FAQ.md b/FAQ.md
index 94a1bbce..d2ce9da3 100644
--- a/FAQ.md
+++ b/FAQ.md
@@ -2,7 +2,7 @@
 
 Without `-a`, `-c` or `--cs`, minimap2 only finds *approximate* mapping
 locations without detailed base alignment. In particular, the start and end
-positions of the alignment are impricise. With one of those options, minimap2
+positions of the alignment are imprecise. With one of those options, minimap2
 will perform base alignment, which is generally more accurate but is much
 slower.
 
diff --git a/minimap2.1 b/minimap2.1
index 9e15ccdd..f8abbc7a 100644
--- a/minimap2.1
+++ b/minimap2.1
@@ -742,7 +742,7 @@ s2	i	Chaining score of the best secondary chain
 NM	i	Total number of mismatches and gaps in the alignment
 MD	Z	To generate the ref sequence in the alignment
 AS	i	DP alignment score
-SA	Z	List of other supplementary alignments
+SA	Z	List of other supplementary alignments (with approximate CIGAR strings)
 ms	i	DP score of the max scoring segment in the alignment
 nn	i	Number of ambiguous bases in the alignment
 ts	A	Transcript strand (splice mode only)