diff --git a/download_urls.yml b/download_urls.yml
index c52baee..665cabd 100644
--- a/download_urls.yml
+++ b/download_urls.yml
@@ -213,6 +213,7 @@
     count: null
 
 - url: https://storage.googleapis.com/gcp-public-data--gnomad/release/2.1.1/constraint/gnomad.v2.1.1.lof_metrics.by_gene.txt.bgz
+- url: https://storage.googleapis.com/gcp-public-data--gnomad/release/v4.0/constraint/gnomad.v4.0.constraint_metrics.tsv
 - url: https://ftp.ncbi.nih.gov/gene/DATA/mim2gene_medgen
 
 - comment: We replace the linux64.gene2.xml binary with a wrapper to zcat...
diff --git a/excerpt-data/58d3599d2c8b6c3d/gnomad.v4.0.constraint_metrics.tsv b/excerpt-data/58d3599d2c8b6c3d/gnomad.v4.0.constraint_metrics.tsv
new file mode 100644
index 0000000..48b39bf
--- /dev/null
+++ b/excerpt-data/58d3599d2c8b6c3d/gnomad.v4.0.constraint_metrics.tsv
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b9489dcef84265243314f42c29236f05a9e9e7caa78cdd8726a209df20abf91b
+size 41407
diff --git a/excerpt-data/58d3599d2c8b6c3d/url.txt b/excerpt-data/58d3599d2c8b6c3d/url.txt
new file mode 100644
index 0000000..0b909db
--- /dev/null
+++ b/excerpt-data/58d3599d2c8b6c3d/url.txt
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2926e12f06bdca84a986c3293e04b3bbf8bcf4341be327e698adf04d3d2edb93
+size 114
diff --git a/varfish_db_downloader/wget.py b/varfish_db_downloader/wget.py
index 970284b..b71a93e 100644
--- a/varfish_db_downloader/wget.py
+++ b/varfish_db_downloader/wget.py
@@ -87,9 +87,10 @@ def excerpt_head(url: str, path_out: str, count: int):
                     break
                 f_out.write(line.encode("utf-8"))
                 f_out.write(b"\n")
-    # Fixup resulting compressed files so they are proper bgzip.
-    subprocess.check_call(["gzip", "-d", path_out])
-    subprocess.check_call(["bgzip", path_out.replace(".gz", "")])
+    if try_gzip:
+        # Fixup resulting compressed files so they are proper bgzip.
+        subprocess.check_call(["gzip", "-d", path_out])
+        subprocess.check_call(["bgzip", path_out.replace(".gz", "")])
 
 
 def excerpt_copy_tbi(url: str, path_out: str, count: int):