diff --git a/include/site/linux-uclibc b/include/site/linux-uclibc
index 90f1f4a772..3e160bcdfe 100644
--- a/include/site/linux-uclibc
+++ b/include/site/linux-uclibc
@@ -67,3 +67,4 @@ ac_cv_ulong=yes
 ac_cv_ushort=yes
 ac_cv_va_copy=C99
 ac_cv_va_val_copy=yes
+as_cv_unaligned_access=yes