diff --git a/test/test_targets.py b/test/test_targets.py
index 1f52333..89c00ca 100644
--- a/test/test_targets.py
+++ b/test/test_targets.py
@@ -18,11 +18,13 @@ class TestTargets(unittest.TestCase):
         "qmtech_daughterboard",             # Reason: Not a real platform.
         "quicklogic_quickfeather",          # Reason: No default clock.
         "efinix_trion_t120_bga576_dev_kit", # Reason: Require Efinity toolchain.
+        "efinix_trion_t20_bga256_dev_kit",  # Reason: Require Efinity toolchain.
     ]
     excluded_targets   = [
         "simple",                           # Reason: Generic target.
         "quicklogic_quickfeather",          # Reason: No default clock.
         "efinix_trion_t120_bga576_dev_kit", # Reason: Require Efinity toolchain.
+        "efinix_trion_t20_bga256_dev_kit",  # Reason: Require Efinity toolchain.
     ]
 
     # Build simple design for all platforms.