diff --git a/crates/starknet-types-core/Cargo.toml b/crates/starknet-types-core/Cargo.toml
index e53d2ee..2c6b64b 100644
--- a/crates/starknet-types-core/Cargo.toml
+++ b/crates/starknet-types-core/Cargo.toml
@@ -20,7 +20,8 @@ arbitrary = { version = "1.3.0", optional = true, default-features = false }
 num-traits = { version = "0.2.16", default-features = false }
 
 [features]
-default = ["std", "serde"]
+default = ["std", "serde", "curve"]
+curve = []
 std = []
 alloc = ["serde?/alloc"]
 arbitrary = ["std", "dep:arbitrary"]
diff --git a/crates/starknet-types-core/src/lib.rs b/crates/starknet-types-core/src/lib.rs
index 4407670..18855ad 100644
--- a/crates/starknet-types-core/src/lib.rs
+++ b/crates/starknet-types-core/src/lib.rs
@@ -1,6 +1,6 @@
 #![cfg_attr(not(feature = "std"), no_std)]
+#[cfg(feature = "curve")]
 pub mod curve;
 pub mod felt;
-
 #[cfg(test)]
 mod felt_arbitrary;
diff --git a/ensure_no_std/Cargo.toml b/ensure_no_std/Cargo.toml
index 3513c3c..e18e611 100644
--- a/ensure_no_std/Cargo.toml
+++ b/ensure_no_std/Cargo.toml
@@ -7,6 +7,7 @@ edition = "2021"
 starknet-types-core = { path = "../crates/starknet-types-core", default-features = false, features = [
     "alloc",
     "serde",
+    "curve",
 ] }
 starknet-types-rpc = { path = "../crates/starknet-types-rpc", default-features = false }
 wee_alloc = "0.4.5"