diff --git a/bacnet-stack/include/debug.h b/bacnet-stack/include/debug.h
index 79a34a29..2a7126f5 100644
--- a/bacnet-stack/include/debug.h
+++ b/bacnet-stack/include/debug.h
@@ -38,6 +38,10 @@
 #include <stdbool.h>
 #include <stdio.h>
 #include "bacdef.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
 
 #if DEBUG_ENABLED
 void debug_printf(
@@ -51,5 +55,9 @@ static void debug_printf(
     format = format;
 }
 #endif
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
 
 #endif