diff --git a/mhcflurry/downloads.yml b/mhcflurry/downloads.yml
index 436bdcb7856ecaadacab2917c1060c2886c7b0fe..24b2673063756544425a831dc3c75f925bb9bca2 100644
--- a/mhcflurry/downloads.yml
+++ b/mhcflurry/downloads.yml
@@ -36,7 +36,7 @@ releases:
               default: false
 
             - name: data_mass_spec_benchmark
-              url: https://www.dropbox.com/s/4wzotlnl58i1w32/data_mass_spec_benchmark.20191027.tar.bz2?dl=0
+              url: https://www.dropbox.com/s/4wzotlnl58i1w32/data_mass_spec_benchmark.20191027.tar.bz2?dl=1
               default: false
 
             - name: data_mass_spec_annotated