diff --git a/sysdeps/i386/fpu/e_expl.c b/sysdeps/i386/fpu/e_expl.c
index d9c6476e11..3802342bcf 100644
--- a/sysdeps/i386/fpu/e_expl.c
+++ b/sysdeps/i386/fpu/e_expl.c
@@ -22,6 +22,8 @@
  * -- moshier@na-net.ornl.gov
  */
 
+#include <math_private.h>
+
 static long double c0 = 1.44268798828125L;
 static long double c1 = 7.05260771340735992468e-6L;