diff --git a/core/mvcc/bindings/c/include/mvcc.h b/core/mvcc/bindings/c/include/mvcc.h
index 92595e41b..808c4047e 100644
--- a/core/mvcc/bindings/c/include/mvcc.h
+++ b/core/mvcc/bindings/c/include/mvcc.h
@@ -1,9 +1,10 @@
 #ifndef MVCC_H
 #define MVCC_H
 
-#define MVCC_OK 0
-
-#define MVCC_IO_ERROR_WRITE 778
+typedef enum {
+  MVCC_OK = 0,
+  MVCC_IO_ERROR_WRITE = 778,
+} MVCCError;
 
 typedef struct DbContext DbContext;
 
@@ -17,7 +18,7 @@ MVCCDatabaseRef MVCCDatabaseOpen(const char *path);
 
 void MVCCDatabaseClose(MVCCDatabaseRef db);
 
-int32_t MVCCDatabaseInsert(MVCCDatabaseRef db, uint64_t id, const uint8_t *value_ptr, uintptr_t value_len);
+MVCCError MVCCDatabaseInsert(MVCCDatabaseRef db, uint64_t id, const uint8_t *value_ptr, uintptr_t value_len);
 
 #ifdef __cplusplus
 } // extern "C"
diff --git a/core/mvcc/bindings/c/src/errors.rs b/core/mvcc/bindings/c/src/errors.rs
index e260394f6..8b40ad2ba 100644
--- a/core/mvcc/bindings/c/src/errors.rs
+++ b/core/mvcc/bindings/c/src/errors.rs
@@ -1,3 +1,5 @@
-pub const MVCC_OK: i32 = 0;
-
-pub const MVCC_IO_ERROR_WRITE: i32 = 778;
+#[repr(C)]
+pub enum MVCCError {
+    MVCC_OK = 0,
+    MVCC_IO_ERROR_WRITE = 778,
+}
diff --git a/core/mvcc/bindings/c/src/lib.rs b/core/mvcc/bindings/c/src/lib.rs
index 6efecf8d5..2a429cbdb 100644
--- a/core/mvcc/bindings/c/src/lib.rs
+++ b/core/mvcc/bindings/c/src/lib.rs
@@ -4,9 +4,9 @@
 mod errors;
 mod types;
 
-use types::{MVCCDatabaseRef, DbContext};
-use errors::*;
+use errors::MVCCError;
 use mvcc_rs::*;
+use types::{DbContext, MVCCDatabaseRef};
 
 /// cbindgen:ignore
 type Clock = clock::LocalClock;
@@ -63,7 +63,7 @@ pub unsafe extern "C" fn MVCCDatabaseInsert(
     id: u64,
     value_ptr: *const u8,
     value_len: usize,
-) -> i32 {
+) -> MVCCError {
     let db = db.get_ref();
     let value = std::slice::from_raw_parts(value_ptr, value_len);
     let data = match std::str::from_utf8(value) {
@@ -84,11 +84,11 @@ pub unsafe extern "C" fn MVCCDatabaseInsert(
     }) {
         Ok(_) => {
             tracing::debug!("MVCCDatabaseInsert: success");
-            MVCC_OK
+            MVCCError::MVCC_OK
         }
         Err(e) => {
             tracing::error!("MVCCDatabaseInsert: {e}");
-            MVCC_IO_ERROR_WRITE
+            MVCCError::MVCC_IO_ERROR_WRITE
         }
     }
 }
diff --git a/core/mvcc/database/src/lib.rs b/core/mvcc/database/src/lib.rs
index b14e27be3..d88011290 100644
--- a/core/mvcc/database/src/lib.rs
+++ b/core/mvcc/database/src/lib.rs
@@ -35,4 +35,4 @@ pub mod clock;
 pub mod database;
 pub mod errors;
 pub mod persistent_storage;
-pub mod sync;
\ No newline at end of file
+pub mod sync;