diff --git a/launcher/modplatform/flame/FlameModIndex.cpp b/launcher/modplatform/flame/FlameModIndex.cpp
index 70d07c201..83a28fa2b 100644
--- a/launcher/modplatform/flame/FlameModIndex.cpp
+++ b/launcher/modplatform/flame/FlameModIndex.cpp
@@ -1,5 +1,6 @@
 #include "FlameModIndex.h"
 
+#include "FileSystem.h"
 #include "Json.h"
 #include "minecraft/MinecraftInstance.h"
 #include "minecraft/PackProfile.h"
diff --git a/launcher/modplatform/modrinth/ModrinthPackIndex.cpp b/launcher/modplatform/modrinth/ModrinthPackIndex.cpp
index 561976dc3..4671a330d 100644
--- a/launcher/modplatform/modrinth/ModrinthPackIndex.cpp
+++ b/launcher/modplatform/modrinth/ModrinthPackIndex.cpp
@@ -17,6 +17,7 @@
  */
 
 #include "ModrinthPackIndex.h"
+#include "FileSystem.h"
 #include "ModrinthAPI.h"
 
 #include "Json.h"