diff --git a/tests/suites/test_suite_bignum.misc.data b/tests/suites/test_suite_bignum.misc.data
index c6701b2567..5a4df9f2d8 100644
--- a/tests/suites/test_suite_bignum.misc.data
+++ b/tests/suites/test_suite_bignum.misc.data
@@ -1471,6 +1471,12 @@ mpi_gcd:"-50000":"":"-50000"
 Test GCD: negative, 0 (1 limb)
 mpi_gcd:"-a782374b2ee927df28802745833a":"00":"-a782374b2ee927df28802745833a"
 
+Test GCD: 0 (null), negative
+mpi_gcd:"":"-50000":"50000"
+
+Test GCD: 0 (1 limb), negative
+mpi_gcd:"00":"-a782374b2ee927df28802745833a":"a782374b2ee927df28802745833a"
+
 Test GCD: gcd=1, A is odd, B is odd, 0 < A < B
 mpi_gcd:"109fe45714866e56fdd4ad9b6b686df27224afb7868cf4f0cbb794526932853cbf0beea61594166654d13cd9fe0d9da594a97ee20230f12fb5434de73fb4f8102725a01622b31b1ea42e3a265019039ac1df31869bd97930d792fb72cdaa971d8a8015af":"33ae3764fd06a00cdc3cba5c45dc79a9edb4e67e4d057cc74139d531c25190d111775fc4a0f4439b8b1930bbd766e7b46f170601f316c8a18ff8d5cb5ca5581f168345d101edb462b7d93b7c520ccb8fb276b447a63d869203cc11f67a1122dc4da034218de85e39":"1"