diff --git a/sys/conf/options.mips b/sys/conf/options.mips
index 69708ccafea0..10e2c1b24846 100644
--- a/sys/conf/options.mips
+++ b/sys/conf/options.mips
@@ -145,3 +145,4 @@ PV_STATS		opt_pmap.h
 # Options to use INTRNG code
 #
 MIPS_INTRNG		opt_global.h
+MIPS_NIRQ		opt_global.h
diff --git a/sys/mips/include/intr.h b/sys/mips/include/intr.h
index 28f798f42214..e7258fe3078f 100644
--- a/sys/mips/include/intr.h
+++ b/sys/mips/include/intr.h
@@ -47,8 +47,12 @@
 
 #include <sys/intr.h>
 
-#ifndef NIRQ
-#define	NIRQ		128
+#ifndef	MIPS_NIRQ
+#define	MIPS_NIRQ		128
+#endif
+
+#ifndef	NIRQ
+#define	NIRQ			MIPS_NIRQ
 #endif
 
 #define INTR_IRQ_NSPC_SWI	4