diff --git a/js/src/wasm/WasmSignalHandlers.cpp b/js/src/wasm/WasmSignalHandlers.cpp
index 78d1544084..a811fac9b0 100644
--- a/js/src/wasm/WasmSignalHandlers.cpp
+++ b/js/src/wasm/WasmSignalHandlers.cpp
@@ -244,10 +244,6 @@ using mozilla::DebugOnly;
 // If you run into compile problems on a tier-3 platform, you can disable the
 // emulation here.
 
-#if defined(__linux__) && defined(__arm__)
-#  define WASM_EMULATE_ARM_UNALIGNED_FP_ACCESS
-#endif
-
 #ifdef WASM_EMULATE_ARM_UNALIGNED_FP_ACCESS
 #  include <sys/user.h>
 #endif