diff --git a/src/flash/nand/lpc3180.c b/src/flash/nand/lpc3180.c
index 436580e37..389c18ac4 100644
--- a/src/flash/nand/lpc3180.c
+++ b/src/flash/nand/lpc3180.c
@@ -237,7 +237,7 @@ static int lpc3180_init(struct nand_device *nand)
 
 		/* SLC_CFG = 0x (Force nCE assert, DMA ECC enabled, ECC enabled, DMA burst enabled,
 		 *DMA read from SLC, WIDTH = bus_width) */
-		target_write_u32(target, 0x20020014, 0x3e | (bus_width == 16) ? 1 : 0);
+		target_write_u32(target, 0x20020014, 0x3e | ((bus_width == 16) ? 1 : 0));
 
 		/* SLC_IEN = 3 (INT_RDY_EN = 1) ,(INT_TC_STAT = 1) */
 		target_write_u32(target, 0x20020020, 0x03);
diff --git a/src/flash/nand/lpc32xx.c b/src/flash/nand/lpc32xx.c
index 6febe16a1..058d9a50e 100644
--- a/src/flash/nand/lpc32xx.c
+++ b/src/flash/nand/lpc32xx.c
@@ -332,7 +332,7 @@ static int lpc32xx_init(struct nand_device *nand)
 			WIDTH = bus_width)
 		*/
 		retval = target_write_u32(target, 0x20020014,
-				0x3e | (bus_width == 16) ? 1 : 0);
+				0x3e | ((bus_width == 16) ? 1 : 0));
 		if (ERROR_OK != retval) {
 			LOG_ERROR("could not set SLC_CFG");
 			return ERROR_NAND_OPERATION_FAILED;