diff --git a/README.md b/README.md
index be43655..c3d047a 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@ Use normal build for your own usage. The tools here are used to copy how Intel/S
 
 ## Usage
 * `$ ./do-build-as-silicom.sh [commit]`
-  * Creates CentOS 6.10 container with GCC 4.4.2-7 on it, and builds IES from commit (default _master_). Re-run to build new changes.
+  * Creates CentOS 6.10 container with GCC 4.4.2-7 on it, and builds IES from commit (default _origin/master_). Re-run to build new changes.
   * Alternatively you can build via GCC 4.4.4-10, but it has slight differences. Do this via `$ GCC_VERSION=4.4.4-10.el6 ./do-build-as-silicom.sh`
 * `$ ./do-binary-diff.sh`
   * Creates elf_diff container, and diffs produced build on first step. Grabs known Silicom _.so_
diff --git a/docker/silicom-centos-builder/entrypoint.sh b/docker/silicom-centos-builder/entrypoint.sh
index 135cf1c..d383e27 100755
--- a/docker/silicom-centos-builder/entrypoint.sh
+++ b/docker/silicom-centos-builder/entrypoint.sh
@@ -5,7 +5,10 @@ set -e
 git clone http://git.gammaspectra.live/Sillycom/IES.git working_src
 
 pushd working_src
-git reset --hard "${1}"
+
+if [[ "${1}" != "" ]]; then
+ git reset --hard "${1}"
+fi
 
 ./autogen.sh