diff --git a/README.md b/README.md
index 6ad524e..7596411 100644
--- a/README.md
+++ b/README.md
@@ -84,12 +84,18 @@ This role has multiple variables. The defaults for all these variables are the f
     # Default is 'opensource'.
     type: opensource
 
+    # Specify source respository for NGINX Open Source.
+    # Options are 'nginx_repository' or 'os_repository'.
+    # Default is nginx_repository.
+    install_from: nginx_repository
+
     # Specify which branch of NGINX Open Source you want to install.
     # Options are 'mainline' or 'stable'.
+    # Only works if 'install_from' is set to 'nginx_repository'.
     # Default is mainline.
     branch: mainline
 
-    # Install nginscript, perl, waf (NGINX Plus only), geoip, image-filter, rtmp and/or xslt modules.
+    # Install NGINX JavaScript, Perl, ModSecurity WAF (NGINX Plus only), GeoIP, Image-Filter, RTMP Media Streaming, and/or XSLT modules.
     # Default is false.
     modules:
       njs: false
diff --git a/defaults/main.yml b/defaults/main.yml
index 10fb067..020fc8c 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -4,8 +4,14 @@
 # Default is 'opensource'.
 type: opensource
 
+# Specify source respository for NGINX Open Source.
+# Options are 'nginx_repository' or 'os_repository'.
+# Default is nginx_repository.
+install_from: nginx_repository
+
 # Specify which branch of NGINX Open Source you want to install.
 # Options are 'mainline' or 'stable'.
+# Only works if 'install_from' is set to 'nginx_repository'.
 # Default is mainline.
 branch: mainline
 
diff --git a/tasks/opensource/install-oss.yml b/tasks/opensource/install-oss.yml
index 1ae3fd6..d19e5a5 100644
--- a/tasks/opensource/install-oss.yml
+++ b/tasks/opensource/install-oss.yml
@@ -1,26 +1,38 @@
 ---
-- import_tasks: setup-debian.yml
-  when: ansible_os_family == "Debian"
+- name: ""
+  block:
 
-- import_tasks: setup-redhat.yml
-  when: ansible_os_family == "RedHat"
+    - import_tasks: setup-debian.yml
+      when: ansible_os_family == "Debian"
 
-- import_tasks: setup-suse.yml
-  when: ansible_os_family == "Suse"
+    - import_tasks: setup-redhat.yml
+      when: ansible_os_family == "RedHat"
 
-- import_tasks: setup-freebsd.yml
-  when: ansible_os_family == "FreeBSD"
+    - import_tasks: setup-suse.yml
+      when: ansible_os_family == "Suse"
 
-- name: "(Install: Debian/Ubuntu/CentOS/RedHat) Install NGINX"
+    - import_tasks: setup-freebsd.yml
+      when: ansible_os_family == "FreeBSD"
+
+    - name: "(Install: Debian/Ubuntu/CentOS/RedHat) Install NGINX"
+      package:
+        name: nginx
+        state: present
+      when: ansible_os_family != "FreeBSD"
+      notify: "(Handler: All OSs) Start NGINX"
+
+    - name: "(Install: FreeBSD) Install NGINX"
+      portinstall:
+        name: nginx
+        state: present
+      when: ansible_os_family == "FreeBSD"
+      notify: "(Handler: All OSs) Start NGINX"
+
+  when: install_from == "nginx_repository"
+
+- name: "(Install: Debian/Ubuntu/CentOS/RedHat/FreeBSD) Install NGINX"
   package:
     name: nginx
     state: present
-  when: ansible_os_family != "FreeBSD"
-  notify: "(Handler: All OSs) Start NGINX"
-
-- name: "(Install: FreeBSD) Install NGINX"
-  portinstall:
-    name: nginx
-    state: present
-  when: ansible_os_family == "FreeBSD"
+  when: install_from == "os_repository"
   notify: "(Handler: All OSs) Start NGINX"