diff --git a/src/libedataserver/e-soup-logger.h b/src/libedataserver/e-soup-logger.h
index 06a1758b1..63f71ba5c 100644
--- a/src/libedataserver/e-soup-logger.h
+++ b/src/libedataserver/e-soup-logger.h
@@ -24,6 +24,8 @@
 
 #include <libsoup/soup.h>
 
+G_BEGIN_DECLS
+
 GInputStream *	e_soup_logger_attach	(SoupMessage *message,
 					 GInputStream *input_stream);