diff --git a/libpathod/templates/request_previewform.html b/libpathod/templates/request_previewform.html
index accb1631a..a7130da0d 100644
--- a/libpathod/templates/request_previewform.html
+++ b/libpathod/templates/request_previewform.html
@@ -1,4 +1,11 @@
 <form class="form-inline" method="GET" action="/request_preview">
-    <input id="spec" name="spec" class="input-medium search-query" value="{{spec}}">
+    <input 
+        style="width: 20em"
+        id="spec"
+        name="spec"
+        class="input-medium search-query"
+        value="{{spec}}"
+        placeholder="method:path:[features]"
+    >
     <input type="submit" class="btn" value="preview">
 </form>
diff --git a/libpathod/templates/response_previewform.html b/libpathod/templates/response_previewform.html
index d98a72f77..a82535e4f 100644
--- a/libpathod/templates/response_previewform.html
+++ b/libpathod/templates/response_previewform.html
@@ -1,5 +1,12 @@
 <form class="form-inline" method="GET" action="/response_preview">
-    <input id="spec" name="spec" class="input-medium search-query" value="{{spec}}">
+    <input 
+        style="width: 20em"
+        id="spec"
+        name="spec"
+        class="input-medium search-query"
+        value="{{spec}}"
+        placeholder="code[msg]:[features]"
+    >
     <input type="submit" class="btn" value="preview">
     {% if not nocraft %}
     <a href="#" id="submitspec" class="btn">go to</a>
diff --git a/test/test_app.py b/test/test_app.py
index 8070996fa..699c9c41a 100644
--- a/test/test_app.py
+++ b/test/test_app.py
@@ -59,6 +59,3 @@ class TestApp(tutils.DaemonTests):
         assert r.status_code == 200
         assert 'Request' in r.content
 
-
-
-