diff --git a/nx/include/switch/services/capssu.h b/nx/include/switch/services/capssu.h
index 3e4bef51..9d9ed6fe 100644
--- a/nx/include/switch/services/capssu.h
+++ b/nx/include/switch/services/capssu.h
@@ -9,7 +9,7 @@
 #include "../services/sm.h"
 #include "../services/caps.h"
 
-/// Initialize caps:su. Only available on 6.0.0+.
+/// Initialize caps:su. Only available on 4.0.0+.
 Result capssuInitialize(void);
 void capssuExit(void);
 
diff --git a/nx/source/services/capssu.c b/nx/source/services/capssu.c
index 6dedaa75..b9f96a26 100644
--- a/nx/source/services/capssu.c
+++ b/nx/source/services/capssu.c
@@ -20,7 +20,7 @@ Result capssuInitialize(void) {
     if (serviceIsActive(&g_capssuSrv))
         return 0;
 
-    if (!kernelAbove600())
+    if (!kernelAbove400())
         rc = MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
 
     if (R_SUCCEEDED(rc)) rc = smGetService(&g_capssuSrv, "caps:su");