diff --git a/c/GLib_bcb/mylib/mylib.c b/c/GLib_bcb/mylib/mylib.c
index 5c26d20..7c1c136 100644
--- a/c/GLib_bcb/mylib/mylib.c
+++ b/c/GLib_bcb/mylib/mylib.c
@@ -1,6 +1,6 @@
 #include <stdio.h>
 
-void
+void //__cdecl
 mylib_func (void)
 {
   puts ("Hello mylib_func ()! ;-)\n");
diff --git a/c/GLib_bcb/mylib/mylib.h b/c/GLib_bcb/mylib/mylib.h
index 3cc7200..0ad5325 100644
--- a/c/GLib_bcb/mylib/mylib.h
+++ b/c/GLib_bcb/mylib/mylib.h
@@ -1,2 +1,5 @@
-void
-mylib_func (void);
+extern "C"
+{
+  void //__cdecl
+  mylib_func (void);
+}