diff --git a/src/common.h b/src/common.h
index 28be0228..69d50229 100644
--- a/src/common.h
+++ b/src/common.h
@@ -501,7 +501,7 @@ COMMON_INLINE intmax_t
 add_printf (intmax_t a, intmax_t b)
 {
   intmax_t sum;
-  return (a < 0) | (b < 0) | ckd_add (&sum, a, b) ? -1 : sum;
+  return ((a < 0) | (b < 0) | ckd_add (&sum, a, b)) ? -1 : sum;
 }
 
 /* Module create.c.  */
diff --git a/src/sparse.c b/src/sparse.c
index 1e05ab71..3c584d2e 100644
--- a/src/sparse.c
+++ b/src/sparse.c
@@ -1255,7 +1255,7 @@ decode_num (struct block_ptr bp, uintmax_t nmax, struct tar_sparse_file *file)
 
   overflow |= nmax < n;
   char const *msgid
-    = (!digit_seen | nondigit_seen ? N_("%s: malformed sparse archive member")
+    = ((!digit_seen | nondigit_seen) ? N_("%s: malformed sparse archive member")
        : overflow ? N_("%s: numeric overflow in sparse archive member")
        : NULL);
   if (msgid)