diff --git a/templates/mod/debug/apc.html b/templates/mod/debug/apc.html
index f3c0bde7..fde0979b 100644
--- a/templates/mod/debug/apc.html
+++ b/templates/mod/debug/apc.html
@@ -8,10 +8,10 @@
 	</tr>
 	{% for var in cached_vars %}
 		<tr>
-			<td class="minimal">{{ var.key ? var.key : var.info }}</td>
-			<td class="minimal">{{ var.nhits ? var.nhits : var.num_hits }}</td>
-			<td class="minimal">{{ (var.ctime ? var.ctime : var.creation_time)|ago }} ago</td>
-			<td class="minimal">{{ ((var.ctime ? var.ctime : var.creation_time) + var.ttl)|until }} (ttl: {{ (time() + var.ttl)|until }})</td>
+			<td class="minimal">{{ var.key is defined ? var.key : var.info }}</td>
+			<td class="minimal">{{ var.nhits is defined ? var.nhits : var.num_hits }}</td>
+			<td class="minimal">{{ (var.ctime is defined ? var.ctime : var.creation_time)|ago }} ago</td>
+			<td class="minimal">{{ ((var.ctime is defined ? var.ctime : var.creation_time) + var.ttl)|until }} (ttl: {{ (time() + var.ttl)|until }})</td>
 			<td class="minimal">{{ var.mem_size }} bytes</td>
 		</tr>
 	{% endfor %}