diff --git a/elements/dhcp-all-interfaces/README.rst b/elements/dhcp-all-interfaces/README.rst
index dd7a3f8c..7ecd387c 100644
--- a/elements/dhcp-all-interfaces/README.rst
+++ b/elements/dhcp-all-interfaces/README.rst
@@ -17,3 +17,13 @@ configured properly before networking services are started.
 On Gentoo based distributions we will install the dhcpcd package and
 ensure the service starts at boot.  This service automatically sets
 up all interfaces found via dhcp and/or dhcpv6 (or SLAAC).
+
+Environment Variables
+---------------------
+
+DIB_DHCP_TIMEOUT
+  :Required: No
+  :Default: 30
+  :Description: Amount of time in seconds that the systemd service will
+   wait to get an address.
+  :Example: DIB_DHCP_TIMEOUT=300
diff --git a/elements/dhcp-all-interfaces/install.d/50-dhcp-all-interfaces b/elements/dhcp-all-interfaces/install.d/50-dhcp-all-interfaces
index 972645a7..fa7e2fd7 100755
--- a/elements/dhcp-all-interfaces/install.d/50-dhcp-all-interfaces
+++ b/elements/dhcp-all-interfaces/install.d/50-dhcp-all-interfaces
@@ -24,6 +24,7 @@ if [ "$DIB_INIT_SYSTEM" == "upstart" ]; then
 elif [ "$DIB_INIT_SYSTEM" == "systemd" ]; then
     install -D -g root -o root -m 0644 ${SCRIPTDIR}/dhcp-interface@.service /usr/lib/systemd/system/dhcp-interface@.service
     install -D -g root -o root -m 0644 ${SCRIPTDIR}/dhcp-all-interfaces-udev.rules /etc/udev/rules.d/99-dhcp-all-interfaces.rules
+    sed -i "s/TimeoutStartSec=DIB_DHCP_TIMEOUT/TimeoutStartSec=${DIB_DHCP_TIMEOUT:-30}s/" /usr/lib/systemd/system/dhcp-interface@.service
 elif [ "$DIB_INIT_SYSTEM" == "sysv" ]; then
     install -D -g root -o root -m 0755 ${SCRIPTDIR}/dhcp-all-interfaces.init /etc/init.d/dhcp-all-interfaces
     update-rc.d dhcp-all-interfaces defaults
diff --git a/elements/dhcp-all-interfaces/install.d/dhcp-interface@.service b/elements/dhcp-all-interfaces/install.d/dhcp-interface@.service
index 903026e9..c22594d5 100644
--- a/elements/dhcp-all-interfaces/install.d/dhcp-interface@.service
+++ b/elements/dhcp-all-interfaces/install.d/dhcp-interface@.service
@@ -15,7 +15,7 @@ User=root
 ExecStartPre=/usr/local/sbin/dhcp-all-interfaces.sh %I
 ExecStart=/sbin/ifup %I
 RemainAfterExit=true
-TimeoutStartSec=30s
+TimeoutStartSec=DIB_DHCP_TIMEOUT
 
 [Install]
 WantedBy=multi-user.target