diff --git a/arch/mips/include/uapi/asm/inst.h b/arch/mips/include/uapi/asm/inst.h
index 9b44d5a816fa..1b6f2f219298 100644
--- a/arch/mips/include/uapi/asm/inst.h
+++ b/arch/mips/include/uapi/asm/inst.h
@@ -846,7 +846,7 @@ struct mm16_r3_format {		/* Load from global pointer format */
 struct mm16_r5_format {		/* Load/store from stack pointer format */
 	__BITFIELD_FIELD(unsigned int opcode : 6,
 	__BITFIELD_FIELD(unsigned int rt : 5,
-	__BITFIELD_FIELD(signed int simmediate : 5,
+	__BITFIELD_FIELD(unsigned int imm : 5,
 	__BITFIELD_FIELD(unsigned int : 16, /* Ignored */
 	;))))
 };
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index a9cc74354df8..ebd8a715fe38 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -207,7 +207,7 @@ static inline int is_ra_save_ins(union mips_instruction *ip, int *poff)
 			if (ip->mm16_r5_format.rt != 31)
 				return 0;
 
-			*poff = ip->mm16_r5_format.simmediate;
+			*poff = ip->mm16_r5_format.imm;
 			*poff = (*poff << 2) / sizeof(ulong);
 			return 1;