diff --git a/tests/sys/sys/bitstring_test.c b/tests/sys/sys/bitstring_test.c
--- a/tests/sys/sys/bitstring_test.c
+++ b/tests/sys/sys/bitstring_test.c
@@ -566,7 +566,7 @@
 
 			bit_ffs_at(bitstr, i, nbits, &found_set_bit);
 			ATF_REQUIRE_MSG(
-			    (j + 1 < nbits) ? found_set_bit == j + 1 : -1,
+			    found_set_bit == (j + 1 < nbits) ? j + 1 : -1,
 			    "bit_nset_%d_%d_%d%s: Failed with result %d",
 			    nbits, i, j, memloc, found_set_bit);
 		}
@@ -593,7 +593,7 @@
 
 			bit_ffc_at(bitstr, i, nbits, &found_clear_bit);
 			ATF_REQUIRE_MSG(
-			    (j + 1 < nbits) ? found_clear_bit == j + 1 : -1,
+			    found_clear_bit == (j + 1 < nbits) ? j + 1 : -1,
 			    "bit_nset_%d_%d_%d%s: Failed with result %d",
 			    nbits, i, j, memloc, found_clear_bit);
 		}