diff --git a/nx/include/switch/services/wlaninf.h b/nx/include/switch/services/wlaninf.h
index 9ee9444e..c3aba653 100644
--- a/nx/include/switch/services/wlaninf.h
+++ b/nx/include/switch/services/wlaninf.h
@@ -16,7 +16,7 @@ typedef enum {
     WlanInfState_Connected,        ///< WLAN is connected.
 } WlanInfState;
 
-/// Initialize wlan:inf.
+/// [1.0.0-14.1.2] Initialize wlan:inf.
 Result wlaninfInitialize(void);
 
 /// Exit wlan:inf.
diff --git a/nx/source/services/wlaninf.c b/nx/source/services/wlaninf.c
index 49a984ad..c03ff871 100644
--- a/nx/source/services/wlaninf.c
+++ b/nx/source/services/wlaninf.c
@@ -1,4 +1,5 @@
 #define NX_SERVICE_ASSUME_NON_DOMAIN
+#include "runtime/hosversion.h"
 #include "service_guard.h"
 #include "services/wlaninf.h"
 
@@ -7,6 +8,9 @@ static Service g_wlaninfSrv;
 NX_GENERATE_SERVICE_GUARD(wlaninf);
 
 Result _wlaninfInitialize(void) {
+    if (hosversionAtLeast(15,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
     return smGetService(&g_wlaninfSrv, "wlan:inf");
 }