diff --git a/docker/builder/root/usr/bin/entrypoint b/docker/builder/root/usr/bin/entrypoint
index 5c722eb8..e8d38df1 100755
--- a/docker/builder/root/usr/bin/entrypoint
+++ b/docker/builder/root/usr/bin/entrypoint
@@ -9,6 +9,7 @@ shift
 
 case "$CMD" in
 "cmake")
+    # Check that source directory contains Falco and Sysdig
     if [ ! -d "$SOURCE_DIR/sysdig" ]; then
         echo "Missing sysdig source." >&2
         exit 1
@@ -17,8 +18,19 @@ case "$CMD" in
         echo "Missing falco source." >&2
         exit 1
     fi
+    # Build type can be "debug" or "release", fallbacks to "release" by default
+    BUILD_TYPE=$(echo "$BUILD_TYPE" | tr "[:upper:]" "[:lower:]")
+    case "$BUILD_TYPE" in
+    "debug")
+    ;;
+    *)
+    BUILD_TYPE="release"
+    ;;
+    esac
+    # Prepare build directory
     mkdir -p "$BUILD_DIR/$BUILD_TYPE"
     cd "$BUILD_DIR/$BUILD_TYPE"
+
     cmake \
     -DCMAKE_BUILD_TYPE="$BUILD_TYPE" \
     -DCMAKE_INSTALL_PREFIX=/usr \
diff --git a/docker/builder/root/usr/bin/usage b/docker/builder/root/usr/bin/usage
index b77a5e40..22821a0f 100755
--- a/docker/builder/root/usr/bin/usage
+++ b/docker/builder/root/usr/bin/usage
@@ -26,6 +26,10 @@ How to use.
     * docker run -v $PWD/..:/source -v $PWD/build:/build -ti falcosecurity/falco-builder cmake
     * docker run -v $PWD/..:/source -v $PWD/build:/build -ti falcosecurity/falco-builder [<cmake-target-x>, ..., <cmake-target-y>]
 
+    Eg.,
+    * docker run -v $PWD/..:/source -v $PWD/build:/build -ti falcosecurity/falco-builder tests
+    * docker run -v $PWD/..:/source -v $PWD/build:/build -ti falcosecurity/falco-builder install
+
 How to build.
 
     * cd docker/builder && DOCKER_BUILDKIT=1 docker build -t falcosecurity/falco-builder .