diff --git a/templates/docs/configuring_checks.html b/templates/docs/configuring_checks.html
index 19681e9e..ea440d4e 100644
--- a/templates/docs/configuring_checks.html
+++ b/templates/docs/configuring_checks.html
@@ -62,7 +62,7 @@ For example, this is useful if your backup software sends an email after each ba
 run with a different subject line depending on success or failure.</li>
 <li><strong>Pinging a Paused Check</strong>. Normally, when you ping a paused check, it leaves the
 paused state and goes into the "up" state (or the "down" state
-in case of <a href="../signalling_failures/">a failure signal</a>).
+in case of <a href="../signaling_failures/">a failure signal</a>).
 You can change this behavior by selecting the "Ignore the ping, stay in
 the paused state" option. With this option selected, the paused state becomes "sticky":
 SITE_NAME will ignore all incoming pings until you explicitly <em>resume</em> the check.</li>
diff --git a/templates/docs/configuring_checks.md b/templates/docs/configuring_checks.md
index 7224470b..08b80e4f 100644
--- a/templates/docs/configuring_checks.md
+++ b/templates/docs/configuring_checks.md
@@ -74,7 +74,7 @@ For example, this is useful if your backup software sends an email after each ba
 run with a different subject line depending on success or failure.
 * **Pinging a Paused Check**. Normally, when you ping a paused check, it leaves the
 paused state and goes into the "up" state (or the "down" state
-in case of [a failure signal](../signalling_failures/)).
+in case of [a failure signal](../signaling_failures/)).
 You can change this behavior by selecting the "Ignore the ping, stay in
 the paused state" option. With this option selected, the paused state becomes "sticky":
 SITE_NAME will ignore all incoming pings until you explicitly *resume* the check.
diff --git a/templates/docs/signalling_failures.html b/templates/docs/signaling_failures.html
similarity index 100%
rename from templates/docs/signalling_failures.html
rename to templates/docs/signaling_failures.html
diff --git a/templates/docs/signalling_failures.md b/templates/docs/signaling_failures.md
similarity index 100%
rename from templates/docs/signalling_failures.md
rename to templates/docs/signaling_failures.md
diff --git a/templates/front/base_docs.html b/templates/front/base_docs.html
index 95371fe6..f5a1e18f 100644
--- a/templates/front/base_docs.html
+++ b/templates/front/base_docs.html
@@ -33,7 +33,7 @@
 
         <li class="nav-header">Guides</li>
         {% include "front/docs_nav_item.html" with slug="monitoring_cron_jobs" title="Monitoring cron jobs" %}
-        {% include "front/docs_nav_item.html" with slug="signalling_failures" title="Signalling failures" %}
+        {% include "front/docs_nav_item.html" with slug="signaling_failures" title="Signaling failures" %}
         {% include "front/docs_nav_item.html" with slug="measuring_script_run_time" title="Measuring script run time" %}
         {% include "front/docs_nav_item.html" with slug="attaching_logs" title="Attaching logs" %}
         {% include "front/docs_nav_item.html" with slug="cloning_checks" title="Cloning checks" %}
diff --git a/templates/front/details.html b/templates/front/details.html
index 1f8acc75..fa130d81 100644
--- a/templates/front/details.html
+++ b/templates/front/details.html
@@ -87,7 +87,7 @@
                 <code>{{ check.email }}</code>
 
                 <p>You can also explicitly
-                    <a href="{% url 'hc-serve-doc' 'signalling_failures' %}">
+                    <a href="{% url 'hc-serve-doc' 'signaling_failures' %}">
                         signal a failure</a>
                     and
                     <a href="{% url 'hc-serve-doc' 'measuring_script_run_time' %}">