diff --git a/spice/vd_agent.h b/spice/vd_agent.h
index 7109ede..dda7044 100644
--- a/spice/vd_agent.h
+++ b/spice/vd_agent.h
@@ -234,6 +234,7 @@ typedef struct SPICE_ATTR_PACKED VDAgentClipboardRelease {
     uint8_t selection;
     uint8_t __reserved[sizeof(uint32_t) - 1 * sizeof(uint8_t)];
 #endif
+    uint8_t dummy_empty_field[0]; /* C/C++ compatibility */
 } VDAgentClipboardRelease;
 
 typedef struct SPICE_ATTR_PACKED VDAgentMaxClipboard {