diff --git a/lldb/source/Plugins/SymbolFile/PDB/SymbolFilePDB.cpp b/lldb/source/Plugins/SymbolFile/PDB/SymbolFilePDB.cpp
--- a/lldb/source/Plugins/SymbolFile/PDB/SymbolFilePDB.cpp
+++ b/lldb/source/Plugins/SymbolFile/PDB/SymbolFilePDB.cpp
@@ -57,7 +57,7 @@
 #include "Plugins/SymbolFile/NativePDB/SymbolFileNativePDB.h"
 
 #if defined(_WIN32)
-#include "llvm/Config/config.h"
+#include "llvm/Config/llvm-config.h"
 #endif
 
 using namespace lldb;
diff --git a/llvm/include/llvm/Config/config.h.cmake b/llvm/include/llvm/Config/config.h.cmake
--- a/llvm/include/llvm/Config/config.h.cmake
+++ b/llvm/include/llvm/Config/config.h.cmake
@@ -50,9 +50,6 @@
    don't. */
 #cmakedefine01 HAVE_DECL_STRERROR_S
 
-/* Define to 1 if you have the DIA SDK installed, and to 0 if you don't. */
-#cmakedefine01 LLVM_ENABLE_DIA_SDK
-
 /* Define to 1 if you have the <dlfcn.h> header file. */
 #cmakedefine HAVE_DLFCN_H ${HAVE_DLFCN_H}
 
diff --git a/llvm/include/llvm/Config/llvm-config.h.cmake b/llvm/include/llvm/Config/llvm-config.h.cmake
--- a/llvm/include/llvm/Config/llvm-config.h.cmake
+++ b/llvm/include/llvm/Config/llvm-config.h.cmake
@@ -113,4 +113,7 @@
  * in non assert builds */
 #cmakedefine01 LLVM_UNREACHABLE_OPTIMIZE
 
+/* Define to 1 if you have the DIA SDK installed, and to 0 if you don't. */
+#cmakedefine01 LLVM_ENABLE_DIA_SDK
+
 #endif