diff --git a/include/fpu/softfloat.h b/include/fpu/softfloat.h
index 3ff3fa5224..d9333eb65b 100644
--- a/include/fpu/softfloat.h
+++ b/include/fpu/softfloat.h
@@ -82,8 +82,6 @@ this code that are retained.
 #ifndef SOFTFLOAT_H
 #define SOFTFLOAT_H
 
-#define LIT64( a ) a##LL
-
 /*----------------------------------------------------------------------------
 | Software IEC/IEEE floating-point ordering relations
 *----------------------------------------------------------------------------*/