diff --git a/spec/instance_template/if_spec.cr b/spec/instance_template/if_spec.cr
index dbe4f24..74db2a1 100644
--- a/spec/instance_template/if_spec.cr
+++ b/spec/instance_template/if_spec.cr
@@ -11,7 +11,12 @@ module ToHtml::InstanceTemplate::IfSpec
 
     ToHtml.instance_template do
       if switch
-        p { "Hooray!" }
+        # nested ifs should work, too
+        if !!switch
+          if true && switch
+            p { "Hooray!" }
+          end
+        end
       end
       div do
         if switch
diff --git a/src/instance_template.cr b/src/instance_template.cr
index 65cd51f..5b7104e 100644
--- a/src/instance_template.cr
+++ b/src/instance_template.cr
@@ -82,7 +82,7 @@ module ToHtml
       end
     {% elsif blk.body.is_a?(If) %}
       if {{blk.body.cond}}
-        {% if blk.body.then %}
+        {% if !blk.body.then.nil? %}
           ToHtml.to_html_eval_exps({{io}}, {{indent_level}}) do
             {{blk.body.then}}
           end
@@ -90,7 +90,7 @@ module ToHtml
             {{io}} << "\n"
           {% end %}
         {% end %}
-      {% if blk.body.else %}
+      {% if !blk.body.else.nil? %}
         else
           ToHtml.to_html_eval_exps({{io}}, {{indent_level}}) do
             {{blk.body.else}}