diff --git a/Python/dtoa.c b/Python/dtoa.c
index c0559b48727..1cac9417487 100644
--- a/Python/dtoa.c
+++ b/Python/dtoa.c
@@ -116,8 +116,6 @@
 
 #include "Python.h"
 
-#define IEEE_8087
-
 /* if PY_NO_SHORT_FLOAT_REPR is defined, then don't even try to compile
    the following code */
 #ifndef PY_NO_SHORT_FLOAT_REPR