diff --git a/webtrees/Dockerfile b/webtrees/Dockerfile
index a996415b3..e740f5c8e 100644
--- a/webtrees/Dockerfile
+++ b/webtrees/Dockerfile
@@ -3,8 +3,8 @@ FROM nathanvaughn/webtrees:latest
 
 RUN \
     # Use data from addon options for all values
-    sed -i "s|cat "$|jq .|g" /docker-entrypoint.sh \
-    && sed -i "s|_FILE" 2> /dev/null| /data/options|g" /docker-entrypoint.sh
+    sed -i 's|cat "$|jq .|g' /docker-entrypoint.sh \
+    && sed -i 's|_FILE" 2> /dev/null| /data/options|g' /docker-entrypoint.sh
 
 #VOLUME [ "/data" ]