src/pkg/runtime/windows/os.h | 1 +

diff --git a/src/pkg/runtime/windows/os.h b/src/pkg/runtime/windows/os.h
index 445e5b5f4540c09886725f7bf2f0c0153b0f8df7..3e071ea6b4222e72a7970b830844180b59a00fe8 100644
--- a/src/pkg/runtime/windows/os.h
+++ b/src/pkg/runtime/windows/os.h
@@ -4,6 +4,7 @@ // license that can be found in the LICENSE file.
 
 extern void *runtime·LoadLibraryEx;
 extern void *runtime·GetProcAddress;
+extern void *runtime·GetLastError;
 
 #define runtime·goargs runtime·windows_goargs
 void runtime·windows_goargs(void);