diff --git a/test/cfg/windows.cpp b/test/cfg/windows.cpp
index f8afb0fb8..1e7990d37 100644
--- a/test/cfg/windows.cpp
+++ b/test/cfg/windows.cpp
@@ -13,6 +13,15 @@
 #include <time.h>
 
 
+SYSTEM_INFO uninitvar_GetSystemInfo(char * envstr)
+{
+    // No warning is expected
+    SYSTEM_INFO SystemInfo;
+    GetSystemInfo(&SystemInfo);
+    return SystemInfo;
+}
+
+
 void uninitvar__putenv(char * envstr)
 {
     // No warning is expected