diff --git a/qemu/target/mips/translate.c b/qemu/target/mips/translate.c
index 6e6231a7..c7f22b1e 100644
--- a/qemu/target/mips/translate.c
+++ b/qemu/target/mips/translate.c
@@ -21986,8 +21986,8 @@ void cpu_state_reset(CPUMIPSState *env)
         env->CP0_Status |= (1 << CP0St_FR);
     }
 
-    if (env->CP0_Config3 & (1 << CP0C3_ISA)) {
-        /*  microMIPS on reset when Config3.ISA == {1, 3} */
+    if (env->CP0_Config3 & (1 << CP0C3_ISA) & (1 << (CP0C3_ISA + 1))) {
+        /*  microMIPS on reset when Config3.ISA is 3 */
         env->hflags |= MIPS_HFLAG_M16;
     }