diff --git a/nx/include/switch/services/applet.h b/nx/include/switch/services/applet.h
index d9d784fe..5c082e1b 100644
--- a/nx/include/switch/services/applet.h
+++ b/nx/include/switch/services/applet.h
@@ -178,6 +178,12 @@ typedef enum {
     AppletIdleTimeDetectionExtension_ExtendedUnsafe = 2,       ///< ExtendedUnsafe
 } AppletIdleTimeDetectionExtension;
 
+/// Input policy values for \ref appletSetInputDetectionPolicy.
+typedef enum {
+    AppletInputDetectionPolicy_Unknown0 = 0,       ///< Unknown.
+    AppletInputDetectionPolicy_Unknown1 = 1,       ///< Unknown.
+} AppletInputDetectionPolicy;
+
 /// Input mode values for \ref appletSetWirelessPriorityMode.
 typedef enum {
     AppletWirelessPriorityMode_Unknown1 = 1,       ///< Unknown.
@@ -742,6 +748,13 @@ Result appletIsAutoSleepDisabled(bool *out);
  */
 Result appletGetCurrentIlluminanceEx(bool *bOverLimit, float *fLux);
 
+/**
+ * @brief Sets the \ref AppletInputDetectionPolicy.
+ * @note Only available with [9.0.0+].
+ * @param[in] policy \ref AppletInputDetectionPolicy
+ */
+Result appletSetInputDetectionPolicy(AppletInputDetectionPolicy policy);
+
 /**
  * @brief Sets the WirelessPriorityMode.
  * @note Only available with [4.0.0+].
diff --git a/nx/source/services/applet.c b/nx/source/services/applet.c
index b171656c..c4c91ae4 100644
--- a/nx/source/services/applet.c
+++ b/nx/source/services/applet.c
@@ -1089,6 +1089,7 @@ Result appletGetCurrentIlluminanceEx(bool *bOverLimit, float *fLux) {
     return rc;
 }
 
+IPC_MAKE_CMD_IMPL_HOSVER(       Result appletSetInputDetectionPolicy(AppletInputDetectionPolicy policy), &g_appletISelfController, 72,  _appletCmdInU32NoOut, (9,0,0), policy)
 IPC_MAKE_CMD_IMPL_HOSVER(       Result appletSetWirelessPriorityMode(AppletWirelessPriorityMode mode),   &g_appletISelfController, 80,  _appletCmdInU32NoOut, (4,0,0), mode)
 IPC_MAKE_CMD_IMPL_HOSVER(static Result _appletGetAccumulatedSuspendedTickValue(u64 *tick),               &g_appletISelfController, 90,  _appletCmdNoInOutU64, (6,0,0), tick)
 IPC_MAKE_CMD_IMPL_HOSVER(static Result _appletGetAccumulatedSuspendedTickChangedEvent(Event *out_event), &g_appletISelfController, 91,  _appletCmdGetEvent,   (6,0,0), out_event, true)