diff --git a/arch/mips/src/pic32mx/pic32mx-devcfg.h b/arch/mips/src/pic32mx/pic32mx-devcfg.h
index 58ea7c8138..193e4dab07 100644
--- a/arch/mips/src/pic32mx/pic32mx-devcfg.h
+++ b/arch/mips/src/pic32mx/pic32mx-devcfg.h
@@ -249,7 +249,7 @@
 #  define DEVCFG0_CP                (1 << 28) /* Bit 28: Code-protect */
 #  define DEVCFG0_SIGN              (1 << 31) /* Bit 31: Signature */
 
-#  define DEVCFG0_UNUSED            0x6ef00ff0 /* Bits 4-11, 20-23, 25-27, 29-30 */
+#  define DEVCFG0_UNUSED            0x6ef00ff4 /* Bits 4-11, 20-23, 25-27, 29-30 */
 #endif
 
 /****************************************************************************