diff --git a/kotlin-native/konan/konan.properties b/kotlin-native/konan/konan.properties
index 4ed35a07a7b..0febdc9b6e7 100644
--- a/kotlin-native/konan/konan.properties
+++ b/kotlin-native/konan/konan.properties
@@ -89,6 +89,12 @@ cacheableTargets.macos_arm64 = \
   ios_simulator_arm64 \
   ios_arm64
 
+# Targets that support compiler caches, but these caches
+# are not considered stable enough to be turned on by default.
+optInCacheableTargets = \
+  ios_arm64 \
+  linux_x64
+
 # Mac OS X.
 # Can be an absolute path instead of predefined value.
 llvmHome.macos_x64 = $llvm.macos_x64.dev