diff --git a/include/site/linux-uclibc b/include/site/linux-uclibc
index 3e160bcdf..5640e2a7f 100644
--- a/include/site/linux-uclibc
+++ b/include/site/linux-uclibc
@@ -3,6 +3,7 @@ ac_atomic_sub=yes
 ac_cv_c_gettext_without_libintl=yes
 ac_cv_c_long_double=no
 ac_cv_conv_longlong_to_float=yes
+ac_cv_file__dev_zero=yes
 ac_cv_func___va_copy=no
 ac_cv_func__exit=yes
 ac_cv_func_bcopy=yes