diff --git a/include/hostio.h b/include/hostio.h
index 9718321..deb5375 100644
--- a/include/hostio.h
+++ b/include/hostio.h
@@ -51,6 +51,26 @@ VM_HOOK(storage_load_bytes32) void storage_load_bytes32(const uint8_t * key, uin
  */
 VM_HOOK(storage_store_bytes32) void storage_store_bytes32(const uint8_t * key, const uint8_t * value);
 
+/**
+ * Reads a 32-byte value from transient storage. Stylus's storage format is identical to
+ * that of the EVM. This means that, under the hood, this hostio is accessing the 32-byte
+ * value stored in the EVM transient storage at offset `key`, which will be `0` when not previously
+ * set. The semantics, then, are equivalent to that of the EVM's [`TLOAD`] opcode.
+ * 
+ * [`TLOAD`]: https://eips.ethereum.org/EIPS/eip-1153
+ */
+VM_HOOK(transient_load_bytes32) void transient_load_bytes32(const uint8_t * key, uint8_t * dest);
+
+/**
+ * Stores a 32-byte value to permanent storage. Stylus's storage format is identical to that
+ * of the EVM. This means that, under the hood, this hostio is storing a 32-byte value into
+ * the EVM transient storage at offset `key`. Furthermore, refunds are tabulated exactly as in the
+ * EVM. The semantics, then, are equivalent to that of the EVM's [`TSTORE`] opcode.
+ * 
+ * [`TSTORE`]: https://eips.ethereum.org/EIPS/eip-1153
+ */
+VM_HOOK(transient_store_bytes32) void transient_store_bytes32(const uint8_t * key, const uint8_t * value);
+
 /**
  * Gets the basefee of the current block. The semantics are equivalent to that of the EVM's
  * [`BASEFEE`] opcode.
diff --git a/include/storage.h b/include/storage.h
index 3ab07a3..ce9fe84 100644
--- a/include/storage.h
+++ b/include/storage.h
@@ -23,7 +23,7 @@ extern "C" {
 
 /**
  * storage_load / store load or store a value from storage accordingly.
- * 
+ *
  * The value of the first "storage" pointer is not used.
  * generated headers provide:
  *  a const storage pointer when working for a view-only function