diff --git a/docs/resources/google_compute_firewall.md b/docs/resources/google_compute_firewall.md
index 01d1e73a1..67111a6ee 100644
--- a/docs/resources/google_compute_firewall.md
+++ b/docs/resources/google_compute_firewall.md
@@ -78,7 +78,7 @@ Properties that can be accessed from the `google_compute_firewall` resource:
 
   * `allowed`: The list of ALLOW rules specified by this firewall. Each rule specifies a protocol and port-range tuple that describes a permitted connection.
 
-    * `ip_protocol`: The IP protocol to which this rule applies. The protocol type is required when creating a firewall rule. This value can either be one of the following well known protocol strings (tcp, udp, icmp, esp, ah, sctp), or the IP protocol number.
+    * `ip_protocol`: The IP protocol to which this rule applies. The protocol type is required when creating a firewall rule. This value can either be one of the following well known protocol strings (tcp, udp, icmp, esp, ah, sctp, ipip), or the IP protocol number.
 
     * `ports`: An optional list of ports to which this rule applies. This field is only applicable for UDP or TCP protocol. Each entry must be either an integer or a range. If not specified, this rule applies to connections through any port.  Example inputs include: ["22"], ["80","443"], and ["12345-12349"].
 
@@ -86,7 +86,7 @@ Properties that can be accessed from the `google_compute_firewall` resource:
 
   * `denied`: The list of DENY rules specified by this firewall. Each rule specifies a protocol and port-range tuple that describes a denied connection.
 
-    * `ip_protocol`: The IP protocol to which this rule applies. The protocol type is required when creating a firewall rule. This value can either be one of the following well known protocol strings (tcp, udp, icmp, esp, ah, sctp), or the IP protocol number.
+    * `ip_protocol`: The IP protocol to which this rule applies. The protocol type is required when creating a firewall rule. This value can either be one of the following well known protocol strings (tcp, udp, icmp, esp, ah, sctp, ipip), or the IP protocol number.
 
     * `ports`: An optional list of ports to which this rule applies. This field is only applicable for UDP or TCP protocol. Each entry must be either an integer or a range. If not specified, this rule applies to connections through any port.  Example inputs include: ["22"], ["80","443"], and ["12345-12349"].