diff --git a/tests/scripts/set_psa_test_dependencies.py b/tests/scripts/set_psa_test_dependencies.py
index e37ce3d..ad1bc90 100755
--- a/tests/scripts/set_psa_test_dependencies.py
+++ b/tests/scripts/set_psa_test_dependencies.py
@@ -105,6 +105,8 @@
 
 def is_systematic_dependency(dep):
     """Whether dep is a PSA dependency which is determined systematically."""
+    if dep.startswith('PSA_WANT_ECC_'):
+        return False
     return dep.startswith('PSA_WANT_')
 
 WITHOUT_SYSTEMATIC_DEPENDENCIES = frozenset([