diff --git a/tests/Makefile.am b/tests/Makefile.am
index 59d02a7f0..3d7705af2 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -2,8 +2,9 @@ include $(top_srcdir)/Makefile.decl
 
 SUBDIRS=gobject refcount
 
-AM_CPPFLAGS = 				\
-	$(gmodule_INCLUDES) 		\
+AM_CPPFLAGS = \
+	$(gmodule_INCLUDES)			\
+	-DGLIB_DISABLE_DEPRECATION_WARNINGS	\
 	$(GLIB_DEBUG_FLAGS)
 
 AM_CFLAGS = -g
diff --git a/tests/gobject/Makefile.am b/tests/gobject/Makefile.am
index 0ab5bf64c..fcb4e2348 100644
--- a/tests/gobject/Makefile.am
+++ b/tests/gobject/Makefile.am
@@ -2,6 +2,7 @@ include $(top_srcdir)/Makefile.decl
 
 INCLUDES =					\
 	$(gmodule_INCLUDES)			\
+	-DGLIB_DISABLE_DEPRECATION_WARNINGS	\
 	$(GLIB_DEBUG_FLAGS)
 
 libglib = $(top_builddir)/glib/libglib-2.0.la
diff --git a/tests/refcount/Makefile.am b/tests/refcount/Makefile.am
index f904c1f77..1c7d71648 100644
--- a/tests/refcount/Makefile.am
+++ b/tests/refcount/Makefile.am
@@ -2,6 +2,7 @@ include $(top_srcdir)/Makefile.decl
 
 INCLUDES =					\
 	$(gmodule_INCLUDES) 			\
+	-DGLIB_DISABLE_DEPRECATION_WARNINGS	\
 	$(GLIB_DEBUG_FLAGS)
 
 libglib = $(top_builddir)/glib/libglib-2.0.la