--- libmalloc/libmalloc-374.120.1/src/pgm_malloc.c
+++ libmalloc/libmalloc-374.60.3/src/pgm_malloc.c
@@ -1113,7 +1113,7 @@
 	return true;
 }
 
-#if TARGET_OS_WATCH || TARGET_OS_TV
+#if TARGET_OS_WATCH
 static bool
 is_high_memory_device(void)
 {
@@ -1131,14 +1131,12 @@
 	if (FEATURE_FLAG(ProbGuard, true) && should_activate(internal_build)) {
 #if TARGET_OS_OSX || TARGET_OS_IOS
 		return true;
-#elif TARGET_OS_WATCH || TARGET_OS_TV
-		if (is_high_memory_device()) {
+#elif TARGET_OS_TV
+		if (internal_build) {
 			return true;
 		}
-#elif TARGET_OS_DRIVERKIT
-		// Never enable for DriverKit
-#else
-		if (internal_build) {
+#elif TARGET_OS_WATCH
+		if (internal_build && is_high_memory_device()) {
 			return true;
 		}
 #endif