diff --git a/Makefile.am b/Makefile.am
index 2cf4fcd286..60a171f528 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1898,7 +1898,7 @@ src_libnm_client_impl_NM_1_0_gir_INCLUDES = Gio-2.0
 src_libnm_client_impl_NM_1_0_gir_PACKAGES = gio-2.0
 src_libnm_client_impl_NM_1_0_gir_EXPORT_PACKAGES = libnm
 src_libnm_client_impl_NM_1_0_gir_CFLAGS = \
-	$(src_libnm_client_impl_libnm_la_CPPFLAGS) \
+	$(filter-out -DGLIB_VERSION_%, $(src_libnm_client_impl_libnm_la_CPPFLAGS)) \
 	-DNETWORKMANAGER_COMPILATION \
 	$(NULL)
 src_libnm_client_impl_NM_1_0_gir_LIBS = src/libnm-client-impl/libnm.la