diff --git a/lens/download_human_references.sh b/lens/download_human_references.sh
index 687e2144..bd846b8e 100644
--- a/lens/download_human_references.sh
+++ b/lens/download_human_references.sh
@@ -4,7 +4,7 @@ cd $REFERENCES_PATH
 
 # set up homo sapiens directory
 mkdir -p homo_sapiens; cd homo_sapiens
-export HUMAN_REFERENCES_PATH=$REFERENCES_PATH/homo_sapiens 
+export HUMAN_REFERENCES_PATH=$REFERENCES_PATH/homo_sapiens
 
 #mhcflurry
 mkdir -p mhcflurry/tmp
diff --git a/lens/download_mouse_references.sh b/lens/download_mouse_references.sh
index 9d11c70d..bb6da99e 100644
--- a/lens/download_mouse_references.sh
+++ b/lens/download_mouse_references.sh
@@ -3,7 +3,7 @@ export REFERENCES_PATH=$RAFT_PATH/references
 cd $REFERENCES_PATH
 
 mkdir -p mus_musculus; cd mus_musculus
-export MOUSE_REFERENCES_PATH=$REFERENCES_PATH/mus_musculus 
+export MOUSE_REFERENCES_PATH=$REFERENCES_PATH/mus_musculus
 
 
 # Genomic reference