diff --git a/libfeedback/meson.build b/libfeedback/meson.build
index 09a495c..27d94c6 100644
--- a/libfeedback/meson.build
+++ b/libfeedback/meson.build
@@ -87,7 +87,6 @@ if introspection
     '--quiet',
     '-DLIBFEEDBACK_COMPILATION',
     '-DLIBFEEDBACK_USE_UNSTABLE_API',
-    '--warn-error',
     '--warn-all',
   ]
 
@@ -104,6 +103,7 @@ if introspection
         install_dir_gir : girdir,
     install_dir_typelib : typelibdir,
              extra_args : libfeedback_gir_extra_args,
+         fatal_warnings : true,
    )
 
   if get_option('vapi')
diff --git a/src/fbd-event.c b/src/fbd-event.c
index 96e1c6d..917b5e2 100644
--- a/src/fbd-event.c
+++ b/src/fbd-event.c
@@ -376,8 +376,6 @@ fbd_event_remove_feedback (FbdEvent *self, FbdFeedbackBase *feedback)
 void
 fbd_event_run_feedbacks (FbdEvent *self)
 {
-  GSList *l;
-
   g_return_if_fail (FBD_IS_EVENT (self));
 
   g_debug ("Running %d feedbacks for event %d", g_slist_length (self->feedbacks), self->id);
@@ -392,10 +390,12 @@ fbd_event_run_feedbacks (FbdEvent *self)
     g_source_set_name_by_id (self->timeout_id, "event timeout source");
   }
 
-  for (l = self->feedbacks; l; l = l->next) {
+  g_object_ref (self);
+  for (GSList *l = self->feedbacks; l; l = l->next) {
     FbdFeedbackBase *fb = FBD_FEEDBACK_BASE (l->data);
     fbd_feedback_run (fb);
   }
+  g_object_unref (self);
 }
 
 /**
diff --git a/src/fbd-feedback-profile.c b/src/fbd-feedback-profile.c
index 28d6f29..94cbb36 100644
--- a/src/fbd-feedback-profile.c
+++ b/src/fbd-feedback-profile.c
@@ -58,7 +58,7 @@ fbd_feedback_profile_serializable_serialize_property (JsonSerializable *serializ
     GHashTableIter iter;
     gpointer key;
     FbdFeedbackProfile *profile;
-    JsonArray *array = json_array_sized_new (FBD_FEEDBACK_PROFILE_N_PROFILES);
+    g_autoptr (JsonArray) array = json_array_sized_new (FBD_FEEDBACK_PROFILE_N_PROFILES);
 
     g_hash_table_iter_init (&iter, self->feedbacks);
     while (g_hash_table_iter_next (&iter, (gpointer *)&key, (gpointer *) &profile)) {
diff --git a/src/fbd-feedback-theme.c b/src/fbd-feedback-theme.c
index 3274920..e416f89 100644
--- a/src/fbd-feedback-theme.c
+++ b/src/fbd-feedback-theme.c
@@ -53,7 +53,7 @@ fbd_theme_serializable_serialize_property (JsonSerializable *serializable,
     GHashTableIter iter;
     gpointer key;
     FbdFeedbackProfile *profile;
-    JsonArray *array = json_array_sized_new (FBD_FEEDBACK_PROFILE_N_PROFILES);
+    g_autoptr (JsonArray) array = json_array_sized_new (FBD_FEEDBACK_PROFILE_N_PROFILES);
 
     g_hash_table_iter_init (&iter, self->profiles);
     while (g_hash_table_iter_next (&iter, (gpointer *)&key, (gpointer *) &profile)) {
@@ -182,6 +182,7 @@ fbd_feedback_theme_finalize (GObject *object)
 {
   FbdFeedbackTheme *self = FBD_FEEDBACK_THEME (object);
 
+  g_clear_pointer (&self->parent_name, g_free);
   g_clear_pointer (&self->name, g_free);
 
   G_OBJECT_CLASS (fbd_feedback_theme_parent_class)->finalize (object);
diff --git a/tests/test-fbd-feedback-profile.c b/tests/test-fbd-feedback-profile.c
index 96fd247..546cc90 100644
--- a/tests/test-fbd-feedback-profile.c
+++ b/tests/test-fbd-feedback-profile.c
@@ -68,7 +68,7 @@ test_fbd_feedback_profile_parse (void)
         "    }                                    ";
   g_autoptr (GError) err = NULL;
   g_autoptr (FbdFeedbackProfile) profile = NULL;
-  JsonNode *node;
+  g_autoptr (JsonNode) node = NULL;
   FbdFeedbackBase *fb;
 
   node = json_from_string(json, &err);
diff --git a/tests/test-fbd-feedback-theme.c b/tests/test-fbd-feedback-theme.c
index c5cb636..f1987be 100644
--- a/tests/test-fbd-feedback-theme.c
+++ b/tests/test-fbd-feedback-theme.c
@@ -36,11 +36,11 @@ test_fbd_feedback_theme_profiles (void)
   g_autoptr (FbdFeedbackDummy) full_fb2 = g_object_new (FBD_TYPE_FEEDBACK_DUMMY,
 							"event-name", "event2",
 							NULL);
-  g_autoptr(FbdFeedbackTheme) theme = fbd_feedback_theme_new (THEME_NAME);
-
+  FbdFeedbackTheme *theme = fbd_feedback_theme_new (THEME_NAME);
   FbdFeedbackProfile *profile_full = fbd_feedback_profile_new ("full");
   FbdFeedbackProfile *profile_quiet = fbd_feedback_profile_new ("quiet");
   FbdFeedbackProfile *profile;
+  g_autofree char *json = NULL;
 
   fbd_feedback_profile_add_feedback (profile_quiet, FBD_FEEDBACK_BASE(quiet_fb1));
   fbd_feedback_profile_add_feedback (profile_quiet, FBD_FEEDBACK_BASE(quiet_fb2));
@@ -55,7 +55,12 @@ test_fbd_feedback_theme_profiles (void)
   profile = fbd_feedback_theme_get_profile (theme, "full");
   g_assert_true (FBD_IS_FEEDBACK_PROFILE (profile));
 
-  g_print ("%s\n", json_gobject_to_data (G_OBJECT(theme), NULL));
+  json = json_gobject_to_data (G_OBJECT(theme), NULL);
+  g_print ("%s\n", json);
+
+  g_assert_finalize_object (theme);
+  g_assert_finalize_object (profile_full);
+  g_assert_finalize_object (profile_quiet);
 }