diff --git a/Packages/Interval_arithmetic/include/CGAL/FPU.h b/Packages/Interval_arithmetic/include/CGAL/FPU.h
index fec0699828c..9db39026d87 100644
--- a/Packages/Interval_arithmetic/include/CGAL/FPU.h
+++ b/Packages/Interval_arithmetic/include/CGAL/FPU.h
@@ -94,7 +94,7 @@ inline double IA_force_to_double(double x)
 #  define CGAL_IA_FORCE_TO_DOUBLE(x) CGAL::IA_force_to_double(x)
 #else
 #  define CGAL_IA_FORCE_TO_DOUBLE(x) (x)
-#endif // __i386__
+#endif
 
 // We sometimes need to stop constant propagation,
 // because operations are done with a wrong rounding mode at compile time.