diff --git a/arch/mips/cavium-octeon/dma-octeon.c b/arch/mips/cavium-octeon/dma-octeon.c
index 9fbba6a8fa4c..c049632fbcc3 100644
--- a/arch/mips/cavium-octeon/dma-octeon.c
+++ b/arch/mips/cavium-octeon/dma-octeon.c
@@ -228,7 +228,7 @@ void __init plat_swiotlb_setup(void)
 		swiotlbsize = 64 * (1<<20);
 	}
 #endif
-#ifdef CONFIG_USB_OHCI_HCD_PLATFORM
+#if IS_ENABLED(CONFIG_USB_OHCI_HCD_PLATFORM)
 	/* OCTEON II ohci is only 32-bit. */
 	if (OCTEON_IS_OCTEON2() && max_addr >= 0x100000000ul)
 		swiotlbsize = 64 * (1<<20);