diff --git a/include/llvm/Config/config.h.in b/include/llvm/Config/config.h.in
index 9cddec36112..beed1182c3f 100644
--- a/include/llvm/Config/config.h.in
+++ b/include/llvm/Config/config.h.in
@@ -453,6 +453,9 @@
 /* Have host's ___chkstk */
 #undef HAVE____CHKSTK
 
+/* Linker version detected at compile time. */
+#undef HOST_LINK_VERSION
+
 /* Installation directory for binary executables */
 #undef LLVM_BINDIR