diff --git a/hw/display/tcx.c b/hw/display/tcx.c
index a0b6bc58de..6acdc2d282 100644
--- a/hw/display/tcx.c
+++ b/hw/display/tcx.c
@@ -1018,6 +1018,7 @@ static void tcx_realizefn(DeviceState *dev, Error **errp)
     if (fcode_filename) {
         ret = load_image_targphys(fcode_filename, s->prom_addr,
                                   FCODE_MAX_ROM_SIZE);
+        g_free(fcode_filename);
         if (ret < 0 || ret > FCODE_MAX_ROM_SIZE) {
             error_report("tcx: could not load prom '%s'", TCX_ROM_FILE);
         }