diff --git a/win32/common/libgstreamer.def b/win32/common/libgstreamer.def
index 496097ad0a..2c66c8e3a9 100644
--- a/win32/common/libgstreamer.def
+++ b/win32/common/libgstreamer.def
@@ -115,6 +115,7 @@ EXPORTS
 	gst_buffer_list_sized_new
 	gst_buffer_map
 	gst_buffer_memcmp
+	gst_buffer_memset
 	gst_buffer_merge
 	gst_buffer_n_memory
 	gst_buffer_new