diff --git a/docs/04-genomic-file-formats/02-FASTQ-files.md b/docs/04-genomic-file-formats/02-FASTQ-files.md
index ed7d77a..257eaeb 100644
--- a/docs/04-genomic-file-formats/02-FASTQ-files.md
+++ b/docs/04-genomic-file-formats/02-FASTQ-files.md
@@ -34,7 +34,7 @@ by newlines.
 Random access within FASTQ files is not typical—generally, FASTQs are used
 solely as input to some alignment process, which then produces a BAM file—so
 they are gzipped (not bgzipped) to save space. Conventionally, FASTQ file names
-indicate which read the files contains (e.g. Sample.fastq.gz for single-end
+indicate which read the files contain (e.g. Sample.fastq.gz for single-end
 sequencing or Sample_R1.fastq.gz and Sample_R2.fastq.gz in paired-end sequencing
 where _R1 stands for "read one(s)" and _R2 stands for "read two(s)").
 
@@ -82,4 +82,4 @@ zcat Sample_R2.fastq.gz | head -n 7 | gzip -c > Sample_R2.bad.fastq.gz
 fq lint Sample_R1.fastq.gz Sample_R2.bad.fastq.gz
 
 # Sample_R2.bad.fastq.gz:8:1: [S004] CompleteValidator: Incomplete record: quality is empty
-```
\ No newline at end of file
+```