diff --git a/include/dwmmc.h b/include/dwmmc.h
index a02dd67..b641558 100644
--- a/include/dwmmc.h
+++ b/include/dwmmc.h
@@ -142,7 +142,7 @@
 
 	void (*clksel)(struct dwmci_host *host);
 	void (*board_init)(struct dwmci_host *host);
-	unsigned int (*get_mmc_clk)(int dev_index);
+	unsigned int (*get_mmc_clk)(struct dwmci_host *host);
 };
 
 struct dwmci_idmac {