diff --git a/kotlin-native/konan/konan.properties b/kotlin-native/konan/konan.properties
index 0af85283fef..92d0636bae2 100644
--- a/kotlin-native/konan/konan.properties
+++ b/kotlin-native/konan/konan.properties
@@ -403,7 +403,7 @@ targetSysRoot.watchos_arm64 = target-sysroot-xcode_12_5-watchos
 # TODO: Use -target-cpu=apple-s4 when we start generating bitcode for arm64_32.
 targetCpu.watchos_arm64 = cortex-a7
 clangFlags.watchos_arm64 = -cc1 -emit-obj -disable-llvm-passes -x ir -mllvm -aarch64-watch-bitcode-compatibility \
-  -mllvm -arm-bitcode-compatibility -mllvm -fast-isel=false -mllvm -global-isel=false
+  -mllvm -arm-bitcode-compatibility
 clangNooptFlags.watchos_arm64 = -O1
 clangOptFlags.watchos_arm64 = -O3
 clangDebugFlags.watchos_arm64 = -O0 -mllvm -fast-isel=false -mllvm -global-isel=false