diff --git a/hw/xfree86/fbdevhw/fbdevhw.c b/hw/xfree86/fbdevhw/fbdevhw.c
index 11e0f5f673..00a3430355 100644
--- a/hw/xfree86/fbdevhw/fbdevhw.c
+++ b/hw/xfree86/fbdevhw/fbdevhw.c
@@ -368,7 +368,7 @@ fbdev_open_pci(int scrnIndex, struct pci_device *pPci, const char *device, char
                 int maj, min = -1; \
                 FILE *f = fopen(res.gl_pathv[i], "r"); \
                 if (f) { \
-                    fscanf(f, "%d:%d", &maj, &min); \
+                    (void)!fscanf(f, "%d:%d", &maj, &min); \
                     fclose(f); \
                 } \
                 if (fbdev_minor != -1) { \