diff --git a/pygmt/tests/test_x2sys_cross.py b/pygmt/tests/test_x2sys_cross.py
index 09f424d1a42..3220208fe2b 100644
--- a/pygmt/tests/test_x2sys_cross.py
+++ b/pygmt/tests/test_x2sys_cross.py
@@ -3,6 +3,7 @@
 """
 
 import copy
+import platform
 import sys
 from pathlib import Path
 from tempfile import TemporaryDirectory
@@ -55,7 +56,10 @@ def test_x2sys_cross_input_file_output_file():
         assert output is None  # check that output is None since outfile is set
         assert outfile.stat().st_size > 0  # check that outfile exists at path
         result = pd.read_csv(outfile, sep="\t", comment=">", header=2)
-        assert result.shape == (14374, 12) if sys.platform == "darwin" else (14338, 12)
+        if sys.platform == "darwin" and platform.processor() == "arm":
+            assert result.shape == (14374, 12)
+        else:
+            assert result.shape == (14294, 12)
         columns = list(result.columns)
         assert columns[:6] == ["# x", "y", "i_1", "i_2", "dist_1", "dist_2"]
         assert columns[6:] == ["head_1", "head_2", "vel_1", "vel_2", "z_X", "z_M"]