diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c
index 3b33e37bb36073d89f3a37cd6cef30843d09dc6a..132ee664ad5a560ca43ed2621c51c178d52ab066 100644
--- a/src/qemu/qemu_conf.c
+++ b/src/qemu/qemu_conf.c
@@ -407,6 +407,7 @@ static void virQEMUDriverConfigDispose(void *obj)
 
     VIR_FREE(cfg->saveImageFormat);
     VIR_FREE(cfg->dumpImageFormat);
+    VIR_FREE(cfg->snapshotImageFormat);
     VIR_FREE(cfg->autoDumpPath);
 
     virStringListFree(cfg->securityDriverNames);