diff --git a/qemu/target/mips/translate.c b/qemu/target/mips/translate.c
index 3aaf915c..fa4463ba 100644
--- a/qemu/target/mips/translate.c
+++ b/qemu/target/mips/translate.c
@@ -18575,7 +18575,6 @@ enum {
 
 #define NANOMIPS_EXTRACT_RD(op) ((op >> 7) & 0x7)
 #define NANOMIPS_EXTRACT_RS(op) ((op >> 4) & 0x7)
-#define NANOMIPS_EXTRACT_RS2(op) uMIPS_RS(op)
 #define NANOMIPS_EXTRACT_RS1(op) ((op >> 1) & 0x7)
 #define NANOMIPS_EXTRACT_RD5(op) ((op >> 5) & 0x1f)
 #define NANOMIPS_EXTRACT_RS5(op) (op & 0x1f)