diff --git a/src/profit.c b/src/profit.c
index 40de610cae2125bf45fff9a1e0858d43fbcbe6b5..04fe00041c15067517333ab16b8e989f748cbb98 100644
--- a/src/profit.c
+++ b/src/profit.c
@@ -3796,7 +3796,7 @@ float	prof_add(profitstruct *profit, profstruct *prof, int extfluxfac_flag)
       ang = 0.0;
       for (a=0; a<nang; a++)
         {
-#ifdef HAVE_SINCOS
+#ifdef HAVE_SINCOSF
         sincosf(ang, &dsa, &dca);
 #else
         dsa = sinf(ang);