diff --git a/src/platform/tests/test-link.c b/src/platform/tests/test-link.c
index d10d77df54..34eb124f44 100644
--- a/src/platform/tests/test-link.c
+++ b/src/platform/tests/test-link.c
@@ -953,8 +953,13 @@ test_software_detect (gconstpointer user_data)
 				g_assert_cmpint (plnk->ttl, ==, 0);
 				g_assert_cmpint (plnk->ageing, ==, 1245);
 				g_assert_cmpint (plnk->dst_port, ==, 4789);
-				g_assert_cmpint (plnk->src_port_min, ==, 0);
-				g_assert_cmpint (plnk->src_port_max, ==, 0);
+				if (   plnk->src_port_min != 0
+				    || plnk->src_port_max != 0) {
+					/* on some kernels, omiting the port range results in setting
+					 * following default port range. */
+					g_assert_cmpint (plnk->src_port_min, ==, 32768);
+					g_assert_cmpint (plnk->src_port_max, ==, 61000);
+				}
 				break;
 			case 1:
 				g_assert_cmpint (plnk->id, ==, 11214423);