diff --git a/repertory/librepertory/src/platform/unix_platform.cpp b/repertory/librepertory/src/platform/unix_platform.cpp
index dd3576ea..13ff360b 100644
--- a/repertory/librepertory/src/platform/unix_platform.cpp
+++ b/repertory/librepertory/src/platform/unix_platform.cpp
@@ -32,6 +32,7 @@
 #include "utils/error_utils.hpp"
 #include "utils/file_utils.hpp"
 #include "utils/path.hpp"
+#include "utils/string.hpp"
 #include "utils/unix.hpp"
 
 namespace repertory {
diff --git a/repertory/librepertory/src/platform/win32_platform.cpp b/repertory/librepertory/src/platform/win32_platform.cpp
index 745d2423..da155e3d 100644
--- a/repertory/librepertory/src/platform/win32_platform.cpp
+++ b/repertory/librepertory/src/platform/win32_platform.cpp
@@ -27,6 +27,7 @@
 #include "events/types/filesystem_item_added.hpp"
 #include "providers/i_provider.hpp"
 #include "utils/error_utils.hpp"
+#include "utils/string.hpp"
 
 namespace repertory {
 auto lock_data::get_mount_state(const provider_type & /*pt*/, json &mount_state)