diff --git a/contrib/compiler-rt/lib/builtins/fixunssfti.c b/contrib/compiler-rt/lib/builtins/fixunssfti.c
index 9593153745c5..862d7bd6c7af 100644
--- a/contrib/compiler-rt/lib/builtins/fixunssfti.c
+++ b/contrib/compiler-rt/lib/builtins/fixunssfti.c
@@ -1,23 +1,26 @@
 /* ===-- fixunssfti.c - Implement __fixunssfti -----------------------------===
  *
  *                     The LLVM Compiler Infrastructure
  *
  * This file is dual licensed under the MIT and the University of Illinois Open
  * Source Licenses. See LICENSE.TXT for details.
  *
  * ===----------------------------------------------------------------------===
  *
  * This file implements __fixunssfti for the compiler_rt library.
  *
  * ===----------------------------------------------------------------------===
  */
 
+#define SINGLE_PRECISION
+#include "fp_lib.h"
+
 #if defined(CRT_HAS_128BIT)
 typedef tu_int fixuint_t;
 #include "fp_fixuint_impl.inc"
 
 COMPILER_RT_ABI tu_int
 __fixunssfti(fp_t a) {
     return __fixuint(a);
 }
 #endif