diff --git a/CMakeLists.txt b/CMakeLists.txt
index 47f99edf90..11a272367c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -649,6 +649,7 @@ add_subdirectory(Externals/FreeSurround)
 if (APPLE OR WIN32)
   message(STATUS "Using ed25519 from Externals")
   add_subdirectory(Externals/ed25519)
+  include_directories(Externals/ed25519)
 endif()
 
 # Using static soundtouch from Externals
diff --git a/Source/Core/UpdaterCommon/UpdaterCommon.cpp b/Source/Core/UpdaterCommon/UpdaterCommon.cpp
index 89a963609c..dc7318827a 100644
--- a/Source/Core/UpdaterCommon/UpdaterCommon.cpp
+++ b/Source/Core/UpdaterCommon/UpdaterCommon.cpp
@@ -8,7 +8,7 @@
 #include <optional>
 
 #include <OptionParser.h>
-#include <ed25519/ed25519.h>
+#include <ed25519.h>
 #include <mbedtls/base64.h>
 #include <mbedtls/sha256.h>
 #include <zlib.h>