diff --git a/src/EWS/camel/camel-ews-utils.c b/src/EWS/camel/camel-ews-utils.c
index 0707f72..1e71954 100644
--- a/src/EWS/camel/camel-ews-utils.c
+++ b/src/EWS/camel/camel-ews-utils.c
@@ -1552,7 +1552,18 @@ ews_utils_save_category_changes (GHashTable *old_categories, /* gchar *guid ~> C
 
 	evo_labels = g_ptr_array_new_full (5, g_free);
 
-	settings = g_settings_new ("org.gnome.evolution.mail");
+	{
+		g_autoptr(GSettingsSchemaSource) schema_source;
+		g_autoptr(GSettingsSchema) schema;
+		schema_source = g_settings_schema_source_new_from_directory("@evo@",
+									    g_settings_schema_source_get_default(),
+									    TRUE,
+									    NULL);
+		schema = g_settings_schema_source_lookup(schema_source,
+							 "org.gnome.evolution.mail",
+							 FALSE);
+		settings = g_settings_new_full(schema, NULL, NULL);
+	}
 	strv = g_settings_get_strv (settings, "labels");
 
 	for (ii = 0; strv && strv[ii]; ii++) {
diff --git a/src/EWS/common/e-ews-calendar-utils.c b/src/EWS/common/e-ews-calendar-utils.c
index 6deda60..9b44cc7 100644
--- a/src/EWS/common/e-ews-calendar-utils.c
+++ b/src/EWS/common/e-ews-calendar-utils.c
@@ -413,7 +413,18 @@ ews_get_configured_icaltimezone (void)
 	gchar *location;
 	ICalTimezone *zone = NULL;
 
-	settings = g_settings_new ("org.gnome.evolution.calendar");
+	{
+		g_autoptr(GSettingsSchemaSource) schema_source;
+		g_autoptr(GSettingsSchema) schema;
+		schema_source = g_settings_schema_source_new_from_directory("@evo@",
+									    g_settings_schema_source_get_default(),
+									    TRUE,
+									    NULL);
+		schema = g_settings_schema_source_lookup(schema_source,
+							 "org.gnome.evolution.calendar",
+							 FALSE);
+		settings = g_settings_new_full(schema, NULL, NULL);
+	}
 	location = g_settings_get_string (settings, "timezone");
 	if (location) {
 		zone = i_cal_timezone_get_builtin_timezone (location);
diff --git a/src/Microsoft365/camel/camel-m365-store.c b/src/Microsoft365/camel/camel-m365-store.c
index ff1b8e3..4f876c0 100644
--- a/src/Microsoft365/camel/camel-m365-store.c
+++ b/src/Microsoft365/camel/camel-m365-store.c
@@ -309,7 +309,18 @@ m365_store_save_category_changes (GHashTable *old_categories, /* gchar *id ~> Ca
 
 	evo_labels = g_ptr_array_new_full (5, g_free);
 
-	settings = g_settings_new ("org.gnome.evolution.mail");
+	{
+		g_autoptr(GSettingsSchemaSource) schema_source;
+		g_autoptr(GSettingsSchema) schema;
+		schema_source = g_settings_schema_source_new_from_directory("@evo@",
+									    g_settings_schema_source_get_default(),
+									    TRUE,
+									    NULL);
+		schema = g_settings_schema_source_lookup(schema_source,
+							 "org.gnome.evolution.mail",
+							 FALSE);
+		settings = g_settings_new_full(schema, NULL, NULL);
+	}
 	strv = g_settings_get_strv (settings, "labels");
 
 	for (ii = 0; strv && strv[ii]; ii++) {