diff --git a/reactos/include/psdk/ntdef.h b/reactos/include/psdk/ntdef.h
index 770a23eb699..6f343ac4f66 100644
--- a/reactos/include/psdk/ntdef.h
+++ b/reactos/include/psdk/ntdef.h
@@ -299,6 +299,14 @@
 #endif
 #endif /* DECLSPEC_ALIGN */
 
+#ifndef DECLSPEC_SELECTANY
+#if (_MSC_VER >= 1100)
+#define DECLSPEC_SELECTANY  __declspec(selectany)
+#else
+#define DECLSPEC_SELECTANY
+#endif
+#endif
+
 /* Use to silence unused variable warnings when it is intentional */
 #define UNREFERENCED_PARAMETER(P) {(P)=(P);}
 #define UNREFERENCED_LOCAL_VARIABLE(L) {(L)=(L);}
diff --git a/reactos/include/psdk/winnt.h b/reactos/include/psdk/winnt.h
index 38ceab02136..44a33210306 100644
--- a/reactos/include/psdk/winnt.h
+++ b/reactos/include/psdk/winnt.h
@@ -217,6 +217,14 @@ extern "C" {
 # endif
 #endif
 
+#ifndef DECLSPEC_SELECTANY
+#if (_MSC_VER >= 1100)
+#define DECLSPEC_SELECTANY __declspec(selectany)
+#else
+#define DECLSPEC_SELECTANY
+#endif
+#endif
+
 #ifndef DECLSPEC_ADDRSAFE
 #if (_MSC_VER >= 1200) && (defined(_M_ALPHA) || defined(_M_AXP64))
 #define DECLSPEC_ADDRSAFE __declspec(address_safe)