diff --git a/repertory/librepertory/src/app_config.cpp b/repertory/librepertory/src/app_config.cpp
index 16934afc..1b8c0f11 100644
--- a/repertory/librepertory/src/app_config.cpp
+++ b/repertory/librepertory/src/app_config.cpp
@@ -23,6 +23,7 @@
 
 #include "events/event_system.hpp"
 #include "events/events.hpp"
+#include "file_manager/cache_size_mgr.hpp"
 #include "platform/platform.hpp"
 #include "types/startup_exception.hpp"
 #include "utils/common.hpp"
@@ -1171,6 +1172,7 @@ void app_config::set_low_frequency_interval_secs(std::uint16_t value) {
 
 void app_config::set_max_cache_size_bytes(std::uint64_t value) {
   set_value(max_cache_size_bytes_, value);
+  cache_size_mgr::instance().shrink(0U);
 }
 
 void app_config::set_max_upload_count(std::uint8_t value) {