diff --git a/winpr/include/winpr/timezone.h b/winpr/include/winpr/timezone.h
index 14480d025..ce917dc4c 100644
--- a/winpr/include/winpr/timezone.h
+++ b/winpr/include/winpr/timezone.h
@@ -25,6 +25,10 @@
 
 #include <winpr/windows.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #ifndef _WIN32
 
 typedef struct _TIME_ZONE_INFORMATION
@@ -91,5 +95,9 @@ WINPR_API DWORD GetDynamicTimeZoneInformationEffectiveYears(const PDYNAMIC_TIME_
 
 #endif
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* WINPR_TIMEZONE_H */