diff --git a/docker/sftpgo/alpine/Dockerfile b/docker/sftpgo/alpine/Dockerfile
index a4572f2b..46952469 100644
--- a/docker/sftpgo/alpine/Dockerfile
+++ b/docker/sftpgo/alpine/Dockerfile
@@ -4,7 +4,7 @@ RUN apk add --no-cache git gcc g++ ca-certificates \
   && go get -d github.com/drakkan/sftpgo
 WORKDIR /go/src/github.com/drakkan/sftpgo
 ARG TAG
-# Use --build-arg TAG=LATEST for latest tag. Use e.g. --build-arg TAG=0.9.6 for a specific tag. Otherwise HEAD (master) is built.
+# Use --build-arg TAG=LATEST for latest tag. Use e.g. --build-arg TAG=0.9.6 for a specific tag/commit. Otherwise HEAD (master) is built.
 RUN git checkout $(if [ "${TAG}" = LATEST ]; then echo `git rev-list --tags --max-count=1`; elif [ -n "${TAG}" ]; then echo "${TAG}"; else echo HEAD; fi)
 RUN go build -i -ldflags "-s -w -X github.com/drakkan/sftpgo/utils.commit=`git describe --always --dirty` -X github.com/drakkan/sftpgo/utils.date=`date -u +%FT%TZ`" -o /go/bin/sftpgo
 
diff --git a/docker/sftpgo/alpine/README.md b/docker/sftpgo/alpine/README.md
index 14d0e588..603ff373 100644
--- a/docker/sftpgo/alpine/README.md
+++ b/docker/sftpgo/alpine/README.md
@@ -13,7 +13,7 @@ sudo groupadd -g 1003 sftpgrp && \
 
 # Edit sftpgo.json as you need
 
-# Get and build SFTPGo image (add --build-arg TAG=LATEST to build the latest tag or e.g. TAG=0.9.6 for a specific tag).
+# Get and build SFTPGo image (add --build-arg TAG=LATEST to build the latest tag or e.g. TAG=0.9.6 for a specific tag/commit).
 git clone https://github.com/drakkan/sftpgo.git && \
   cd sftpgo && \
   sudo docker build -t sftpgo docker/sftpgo/alpine/
diff --git a/docker/sftpgo/debian/Dockerfile b/docker/sftpgo/debian/Dockerfile
index 7c8fae41..5aac420f 100644
--- a/docker/sftpgo/debian/Dockerfile
+++ b/docker/sftpgo/debian/Dockerfile
@@ -4,7 +4,7 @@ LABEL maintainer="nicola.murino@gmail.com"
 RUN go get -d github.com/drakkan/sftpgo
 WORKDIR /go/src/github.com/drakkan/sftpgo
 ARG TAG
-# Use --build-arg TAG=LATEST for latest tag. Use e.g. --build-arg TAG=0.9.6 for a specific tag. Otherwise HEAD (master) is built.
+# Use --build-arg TAG=LATEST for latest tag. Use e.g. --build-arg TAG=0.9.6 for a specific tag/commit. Otherwise HEAD (master) is built.
 RUN git checkout $(if [ "${TAG}" = LATEST ]; then echo `git rev-list --tags --max-count=1`; elif [ -n "${TAG}" ]; then echo "${TAG}"; else echo HEAD; fi)
 RUN go build -i -ldflags "-s -w -X github.com/drakkan/sftpgo/utils.commit=`git describe --always --dirty` -X github.com/drakkan/sftpgo/utils.date=`date -u +%FT%TZ`" -o sftpgo
 
diff --git a/docker/sftpgo/debian/README.md b/docker/sftpgo/debian/README.md
index c1452c11..65c0325a 100644
--- a/docker/sftpgo/debian/README.md
+++ b/docker/sftpgo/debian/README.md
@@ -9,7 +9,7 @@ docker build -t="drakkan/sftpgo" .
 ```
 
 This will build master of github.com/drakkan/sftpgo. To build the latest tag you can add `--build-arg TAG=LATEST`
-and to build a specific tag you can use for example `TAG=0.9.6`, like this:
+and to build a specific tag/commit you can use for example `TAG=0.9.6`, like this:
 
 ```bash
 docker build -t="drakkan/sftpgo" --build-arg TAG=0.9.6 .