diff --git a/src/sentry/models/options/project_option.py b/src/sentry/models/options/project_option.py
index 2b06f14aeb9e37..09b829d8ae82f1 100644
--- a/src/sentry/models/options/project_option.py
+++ b/src/sentry/models/options/project_option.py
@@ -56,7 +56,6 @@
         "sentry:dynamic_sampling",
         "sentry:dynamic_sampling_biases",
         "sentry:breakdowns",
-        "sentry:span_attributes",
         "sentry:transaction_name_cluster_rules",
         "sentry:span_description_cluster_rules",
         "quotas:spike-protection-disabled",
diff --git a/src/sentry/projectoptions/defaults.py b/src/sentry/projectoptions/defaults.py
index 55ad25a2b2308c..d2a312239c21b8 100644
--- a/src/sentry/projectoptions/defaults.py
+++ b/src/sentry/projectoptions/defaults.py
@@ -102,9 +102,6 @@
 # extracted performance metrics.
 register(key="sentry:transaction_metrics_custom_tags", epoch_defaults={1: []})
 
-# Default span attributes config
-register(key="sentry:span_attributes", epoch_defaults={1: ["exclusive-time"]})
-
 DEFAULT_PROJECT_PERFORMANCE_DETECTION_SETTINGS = {
     "uncompressed_assets_detection_enabled": True,
     "consecutive_http_spans_detection_enabled": True,