diff --git a/src/gene/cli.py b/src/gene/cli.py
index e8606413..132d2e26 100644
--- a/src/gene/cli.py
+++ b/src/gene/cli.py
@@ -59,7 +59,7 @@ def update(
 
     The Gene Normalizer will fetch the latest available data from all sources if local
     data is out-of-date. To suppress this and force usage of local files only, use the
-    –use_existing flag:
+    --use_existing flag:
 
         $ gene-normalizer update --all --use_existing