diff --git a/spec/fixtures/ratelimit.html b/spec/fixtures/ratelimit.html
new file mode 100644
index 0000000..31f03f3
--- /dev/null
+++ b/spec/fixtures/ratelimit.html
@@ -0,0 +1,65 @@
+<!DOCTYPE html>
+<html lang="en">
+    <head>
+        <meta charset="utf-8">
+        <meta name="viewport" content="width=device-width, initial-scale=1.0">
+        <title>Too Many Free PDF Requests</title>
+        <style>
+    body {
+      margin: 0;
+      padding: 0;
+    }
+    .page429 {
+        display: table;
+        width: 100%;
+        padding: 60px 30px;
+        box-sizing: border-box;
+        min-height: 350px;
+        font-family: sans-serif;
+    }
+    .page429 .int {
+        display: table-cell;
+        vertical-align: middle;
+        text-align: left;
+        padding-left: 30px;
+    }
+    .page429 h4 {
+        margin-bottom: 10px;
+        font-weight: 700;
+        font-size: 24px;
+    }
+    .page429 .logo {
+        display: table-cell;
+        width: 23%;
+        max-width: 182px;
+        vertical-align: middle;
+    }
+    .page429 .logo img {
+      max-width: 100%;
+      height: auto;
+    }
+    .page429 p {
+        font-weight: normal;
+        line-height: 1.3;
+    }
+    .page429 a {
+      text-decoration: none;
+      color: #284f84;
+    }
+    </style>
+    </head>
+    <body>
+
+    <div class="page429" id="main">
+        <div class="logo">
+            <a href="https://muse.jhu.edu"><img src="/images/muselogo_notext.png" alt="MUSE logo"></a>
+        </div>
+        <div class="int">
+            <h4>Too Many Free PDF Requests</h4>
+                <p>Your IP has requested too many free PDFs too quickly.</p>
+                <p>Please wait before you continue downloading, and if possible slow down the rate of your requests.</p>
+        </div>
+    </div>
+
+    </body>
+</html>
\ No newline at end of file
diff --git a/src/fetch.cr b/src/fetch.cr
index c713b7c..eece004 100644
--- a/src/fetch.cr
+++ b/src/fetch.cr
@@ -71,6 +71,9 @@ module Muse::Dl
             if /Unable to/.match line
               raise Muse::Dl::Errors::MuseCorruptPDF.new("Error: MUSE is unable to generate PDF for #{url}")
             end
+            if /Your IP has requested/.match line
+              raise Muse::Dl::Errors::DownloadError.new("Error: MUSE Rate-limit reached")
+            end
           end
         end
       end
