diff --git a/oml/fulltext.py b/oml/fulltext.py
index 67ca6bf..4ebe255 100644
--- a/oml/fulltext.py
+++ b/oml/fulltext.py
@@ -2,6 +2,7 @@ import logging
 import os
 import subprocess
 import sys
+from urllib.parse import quote, unquote
 
 from sqlalchemy.sql import operators
 
@@ -14,6 +15,8 @@ def get_prefix():
 
 def get_ids(books):
     from item.models import File
+    if not books:
+        return []
     ids = [b[0] for b in File.query.filter(operators.in_op(File.path, books)).values('sha1')]
     return ids
 
@@ -34,23 +37,29 @@ def find_fulltext_windows(query):
 
 def find_fulltext_linux(query):
     prefix = get_prefix()
+    prefix_url = quote(prefix)
     cmd = [
         'tracker',
         'sparql',
         '-q',
-        "SELECT nie:url(?f) WHERE { ?f fts:match '%s' FILTER (tracker:uri-is-descendant ('file://%s', nie:url (?u))) }" % (query, prefix)
+        "SELECT nie:url(?f) WHERE { ?f fts:match '%s' FILTER (tracker:uri-is-descendant ('file://%s', nie:url (?f))) }" % (query, prefix_url)
     ]
     books = subprocess.check_output(cmd).decode().strip().split('\n')
-    books = [b.split(':')[0] for b in books]
-    return get_ids(books, prefix)
+    books = [
+        unquote(r.strip()).replace('file://', '')[len(prefix):]
+        for r in books if r.strip().startswith('file://')
+    ]
+    return get_ids(books)
 
 def find_fulltext(query):
     ids = []
     if sys.platform == 'darwin':
         ids = find_fulltext_macos(query)
+    elif sys.platform == 'linux':
+        ids = find_fulltext_linux(query)
     else:
         logger.debug('missing fulltext search implementation for %s', sys.platform)
     return ids
 
 def platform_supported():
-    return sys.platform == 'darwin'
+    return sys.platform in ('darwin', 'linux')