diff --git a/services/backtesting_service/Cargo.toml b/services/backtesting_service/Cargo.toml
index ff478f76d..e17516f8e 100644
--- a/services/backtesting_service/Cargo.toml
+++ b/services/backtesting_service/Cargo.toml
@@ -72,7 +72,7 @@ clap = { version = "4.5", features = ["derive"] }
 # path-form: cargo 1.89's `workspace = true` ignores `default-features = false`,
 # so we use the explicit path declaration to opt out of `full-stack` and drop
 # 8 leaf-level ml-* sub-crates that no source file in this service references.
-ml = { path = "../../crates/ml", default-features = false, features = ["financial", "cuda"] }
+ml = { path = "../../crates/ml", default-features = false, features = ["financial", "cuda", "validation-mod"] }
 data.workspace = true
 common = { workspace = true, features = ["database"] }
 
diff --git a/services/trading_service/Cargo.toml b/services/trading_service/Cargo.toml
index 4339e026f..ce61ecf3a 100644
--- a/services/trading_service/Cargo.toml
+++ b/services/trading_service/Cargo.toml
@@ -84,7 +84,7 @@ risk.workspace = true
 # 8 leaf-level ml-* sub-crates (ml-backtesting, ml-paper-trading, ml-stress-testing,
 # ml-explainability, ml-universe, ml-regime-detection, ml-validation,
 # ml-data-validation) that no source file in this service references.
-ml = { path = "../../crates/ml", default-features = false, features = ["financial", "cuda"] }
+ml = { path = "../../crates/ml", default-features = false, features = ["financial", "cuda", "validation-mod"] }
 data.workspace = true
 common = { workspace = true, features = ["database"] }
 config = { workspace = true, features = ["postgres"] }