diff --git a/dlls/msvcrt/math.c b/dlls/msvcrt/math.c
index f8937b3c72a..661a1b4625d 100644
--- a/dlls/msvcrt/math.c
+++ b/dlls/msvcrt/math.c
@@ -331,7 +331,7 @@ float CDECL MSVCRT__scalbf(float num, MSVCRT_long power)
 /*********************************************************************
  *      modff (MSVCRT.@)
  */
-double CDECL MSVCRT_modff( float x, float *iptr )
+float CDECL MSVCRT_modff( float x, float *iptr )
 {
   return modff( x, iptr );
 }