diff --git a/target/i386/tcg/user/seg_helper.c b/target/i386/tcg/user/seg_helper.c
index 263f59937f..28bbef1bba 100644
--- a/target/i386/tcg/user/seg_helper.c
+++ b/target/i386/tcg/user/seg_helper.c
@@ -63,7 +63,7 @@ static void do_interrupt_user(CPUX86State *env, int intno, int is_int,
         cpl = env->hflags & HF_CPL_MASK;
         /* check privilege if software int */
         if (dpl < cpl) {
-            raise_exception_err(env, EXCP0D_GPF, (intno << shift) + 2);
+            raise_exception_err(env, EXCP0D_GPF, intno * 8 + 2);
         }
     }