diff --git a/libstratosphere/include/stratosphere/ams/ams_emummc_api.hpp b/libstratosphere/include/stratosphere/ams/ams_emummc_api.hpp
index c919abc1..4597b2ad 100644
--- a/libstratosphere/include/stratosphere/ams/ams_emummc_api.hpp
+++ b/libstratosphere/include/stratosphere/ams/ams_emummc_api.hpp
@@ -22,6 +22,9 @@ namespace ams::emummc {
     /* Get whether emummc is active. */
     bool IsActive();
 
+    /* Get the active emummc id. */
+    u32 GetActiveId();
+
     /* Get Nintendo redirection path. */
     const char *GetNintendoDirPath();
 
diff --git a/libstratosphere/source/ams/ams_emummc_api.cpp b/libstratosphere/source/ams/ams_emummc_api.cpp
index 02dd75f9..2c82a12d 100644
--- a/libstratosphere/source/ams/ams_emummc_api.cpp
+++ b/libstratosphere/source/ams/ams_emummc_api.cpp
@@ -57,10 +57,10 @@ namespace ams::emummc {
         };
 
         /* Globals. */
-        os::Mutex g_lock(false);
-        ExosphereConfig g_exo_config;
-        bool g_is_emummc;
-        bool g_has_cached;
+        constinit os::SdkMutex g_lock;
+        constinit ExosphereConfig g_exo_config;
+        constinit bool g_is_emummc;
+        constinit bool g_has_cached;
 
         /* Helpers. */
         void CacheValues() {
@@ -110,6 +110,12 @@ namespace ams::emummc {
         return g_is_emummc;
     }
 
+    /* Get the active emummc id. */
+    u32 GetActiveId() {
+        CacheValues();
+        return g_exo_config.base_cfg.id;
+    }
+
     /* Get Nintendo redirection path. */
     const char *GetNintendoDirPath() {
         CacheValues();