diff --git a/pagure/docs_server.py b/pagure/docs_server.py
index 42ee168..bc17900 100644
--- a/pagure/docs_server.py
+++ b/pagure/docs_server.py
@@ -114,7 +114,7 @@ def __get_tree_and_content(repo_obj, commit, path):
             try:
                 content, safe = pagure.doc_utils.convert_readme(
                     blob_obj.data, ext)
-            except pagure.exceptions.PagureException:
+            except pagure.exceptions.PagureEncodingException:
                 safe = False
                 content = blob_obj.data
         else:
diff --git a/pagure/exceptions.py b/pagure/exceptions.py
index 6892623..d4e7a1a 100644
--- a/pagure/exceptions.py
+++ b/pagure/exceptions.py
@@ -87,3 +87,10 @@ class NoCorrespondingPR(PagureException):
 class InvalidObjectException(PagureException):
     ''' Exception raised when a given object is not what was expected. '''
     pass
+
+
+class PagureEncodingException(PagureException, ValueError):
+    ''' Exception raised none of the encoding guessed could be applied to
+    the content examined
+    '''
+    pass
diff --git a/pagure/lib/encoding_utils.py b/pagure/lib/encoding_utils.py
index 550de58..70569d6 100644
--- a/pagure/lib/encoding_utils.py
+++ b/pagure/lib/encoding_utils.py
@@ -127,7 +127,7 @@ def guess_encoding(data):
             return encoding.encoding
         except UnicodeDecodeError:
             pass
-    raise PagureException('No encoding could be guessed for this file')
+    raise PagureEncodingException('No encoding could be guessed for this file')
 
 
 def decode(data):