diff --git a/swift/stdlib/public/runtime/Float16Support.cpp b/swift/stdlib/public/runtime/Float16Support.cpp
index d7377400ba0..9d8c4940054 100644
--- a/swift/stdlib/public/runtime/Float16Support.cpp
+++ b/swift/stdlib/public/runtime/Float16Support.cpp
@@ -29,7 +29,7 @@
 
 // Android NDK <r21 do not provide `__aeabi_d2h` in the compiler runtime,
 // provide shims in that case.
-#if (defined(ANDROID) && defined(__ARM_ARCH_7A__) && defined(__ARM_EABI__)) || \
+#if (defined(__ANDROID__) && defined(__ARM_ARCH_7A__) && defined(__ARM_EABI__)) || \
   ((defined(__i686__) || defined(__x86_64__)) && !defined(__APPLE__))
 
 #include "../SwiftShims/Visibility.h"