diff --git a/prosody-0.11/Dockerfile b/prosody-0.11/Dockerfile
index 2462405..56ba3bc 100644
--- a/prosody-0.11/Dockerfile
+++ b/prosody-0.11/Dockerfile
@@ -1,6 +1,6 @@
 FROM alpine:edge
 
-LABEL maintainer "J. Elfring <code@elfring.ms>
+LABEL maintainer "J. Elfring <code@elfring.ms>"
 
 ## Install Packages
 RUN apk add --no-cache \
diff --git a/torrelay/Dockerfile b/torrelay/Dockerfile
index 46eed9f..0ff5ddd 100644
--- a/torrelay/Dockerfile
+++ b/torrelay/Dockerfile
@@ -1,5 +1,5 @@
 FROM alpine:edge
-LABEL maintainer "J. Elfring <code@elfring.ms>
+LABEL maintainer "J. Elfring <code@elfring.ms>"
 
 RUN apk --update --no-cache add tor
 
diff --git a/webdav/Dockerfile b/webdav/Dockerfile
index 8d4780c..839b183 100644
--- a/webdav/Dockerfile
+++ b/webdav/Dockerfile
@@ -1,5 +1,5 @@
 FROM alpine:3.12
-LABEL maintainer "J. Elfring <code@elfring.ms>
+LABEL maintainer "J. Elfring <code@elfring.ms>"
 
 ## Install prereqs
 RUN apk add --update --no-cache \