diff --git a/tests/unit/browser/test_cache.py b/tests/unit/browser/test_cache.py
index a37169c4d..6040c434b 100644
--- a/tests/unit/browser/test_cache.py
+++ b/tests/unit/browser/test_cache.py
@@ -50,17 +50,15 @@ def test_cache_config_change_cache_size(config_stub, tmpdir):
     assert disk_cache.maximumCacheSize() == max_cache_size * 2
 
 
-def test_cache_config_change_private_browsing(config_stub, tmpdir):
-    """Change private-browsing config and emit signal."""
+def test_cache_config_enable_private_browsing(config_stub, tmpdir):
+    """Change private-browsing config to True and emit signal."""
     config_stub.data = {
         'storage': {'cache-size': 1024},
         'general': {'private-browsing': False}
     }
-    url = 'http://qutebrowser.org'
-    content = b'cute'
     disk_cache = cache.DiskCache(str(tmpdir))
     assert disk_cache.cacheSize() == 0
-    preload_cache(disk_cache, url, content)
+    preload_cache(disk_cache)
     assert disk_cache.cacheSize() > 0
 
     config_stub.data['general']['private-browsing'] = True
@@ -68,6 +66,27 @@ def test_cache_config_change_private_browsing(config_stub, tmpdir):
     assert disk_cache.cacheSize() == 0
 
 
+def test_cache_config_disable_private_browsing(config_stub, tmpdir):
+    """Change private-browsing config to False and emit signal."""
+    config_stub.data = {
+        'storage': {'cache-size': 1024},
+        'general': {'private-browsing': True}
+    }
+    url = 'http://qutebrowser.org'
+    metadata = QNetworkCacheMetaData()
+    metadata.setUrl(QUrl(url))
+    assert metadata.isValid()
+
+    disk_cache = cache.DiskCache(str(tmpdir))
+    assert disk_cache.prepare(metadata) is None
+
+    config_stub.data['general']['private-browsing'] = False
+    config_stub.changed.emit('general', 'private-browsing')
+    content = b'cute'
+    preload_cache(disk_cache, url, content)
+    assert disk_cache.data(QUrl(url)).readAll() == content
+
+
 def test_cache_size_leq_max_cache_size(config_stub, tmpdir):
     """Test cacheSize <= MaximumCacheSize when cache is activated."""
     limit = 100