diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 5f288aeeb721519566de1b6cce93c4ff99cb31a3..df6ce4a06cf37f42c11935ce7f4e2f5d92409758 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -542,6 +542,8 @@ u32 mmc_select_voltage(struct mmc_host *host, u32 ocr)
 		host->ios.vdd = bit;
 		mmc_set_ios(host);
 	} else {
+		pr_warning("%s: host doesn't support card's voltages\n",
+				mmc_hostname(host));
 		ocr = 0;
 	}