diff --git a/src/mistune/plugins/footnotes.py b/src/mistune/plugins/footnotes.py
index e426865..a41dc11 100644
--- a/src/mistune/plugins/footnotes.py
+++ b/src/mistune/plugins/footnotes.py
@@ -108,7 +108,11 @@ def render_footnotes(renderer: "BaseRenderer", text: str) -> str:
 def render_footnote_item(renderer: "BaseRenderer", text: str, key: str, index: int) -> str:
     i = str(index)
     back = '<a href="#fnref-' + i + '" class="footnote">&#8617;</a>'
-    text = text.rstrip()[:-4] + back + "</p>"
+    text = text.rstrip()
+    if text.endswith("</p>"):
+        text = text[:-4] + back + "</p>"
+    else:
+        text = text + "\n" + back
     return '<li id="fn-' + i + '">' + text + "</li>\n"
 
 
diff --git a/tests/fixtures/footnotes.txt b/tests/fixtures/footnotes.txt
index aa85d5c..55175e5 100644
--- a/tests/fixtures/footnotes.txt
+++ b/tests/fixtures/footnotes.txt
@@ -96,6 +96,8 @@ third
 </section>
 ````````````````````````````````
 
+https://github.com/lepture/mistune/issues/378
+
 ```````````````````````````````` example
 This is a foo [^foo].
 
@@ -115,6 +117,8 @@ This is a bar [^bar].
 </section>
 ````````````````````````````````
 
+https://github.com/lepture/mistune/issues/378
+
 ```````````````````````````````` example
 This is body text, and a footnote.[^f]
 
@@ -129,3 +133,22 @@ This is body text, and a footnote.[^f]
 </ol>
 </section>
 ````````````````````````````````
+
+https://github.com/lepture/mistune/issues/428
+
+```````````````````````````````` example
+paragraph [^fn]
+[^fn]: *emph*
+  > aaa
+.
+<p>paragraph <sup class="footnote-ref" id="fnref-1"><a href="#fn-1">1</a></sup></p>
+<section class="footnotes">
+<ol>
+<li id="fn-1"><p><em>emph</em></p>
+<blockquote>
+<p>aaa</p>
+</blockquote>
+<a href="#fnref-1" class="footnote">&#8617;</a></li>
+</ol>
+</section>
+````````````````````````````````