diff --git a/target/mips/translate.c b/target/mips/translate.c
index b4898d5046..3575eff0ae 100644
--- a/target/mips/translate.c
+++ b/target/mips/translate.c
@@ -10055,6 +10055,7 @@ static void gen_mttr(CPUMIPSState *env, DisasContext *ctx, int rd, int rt,
                 gen_mtc0(ctx, t0, rd, sel);
                 break;
             }
+            break;
         case 12:
             switch (sel) {
             case 0:
@@ -10064,6 +10065,7 @@ static void gen_mttr(CPUMIPSState *env, DisasContext *ctx, int rd, int rt,
                 gen_mtc0(ctx, t0, rd, sel);
                 break;
             }
+            break;
         case 13:
             switch (sel) {
             case 0: