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-rw-r--r--tests/qtest/libqtest.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/tests/qtest/libqtest.c b/tests/qtest/libqtest.c
index ca46b1f8d0..1326e34291 100644
--- a/tests/qtest/libqtest.c
+++ b/tests/qtest/libqtest.c
@@ -1514,6 +1514,7 @@ static struct MachInfo *qtest_get_machines(const char *var)
     int idx;
 
     if (g_strcmp0(qemu_var, var)) {
+        g_free(qemu_var);
         qemu_var = g_strdup(var);
 
         /* new qemu, clear the cache */