diff --git a/Cargo.lock b/Cargo.lock
index a876df3..60914bc 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -405,7 +405,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "linkle"
-version = "0.2.9"
+version = "0.2.10"
 dependencies = [
  "aes 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "bit_field 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
diff --git a/Cargo.toml b/Cargo.toml
index 9869677..116a2d7 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "linkle"
-version = "0.2.9"
+version = "0.2.10"
 authors = ["Thog <contact@thog.eu>"]
 license = "MIT/Apache-2.0"
 homepage = "https://github.com/MegatonHammer/linkle/"
diff --git a/src/format/nxo.rs b/src/format/nxo.rs
index 8066cc4..f85fd96 100644
--- a/src/format/nxo.rs
+++ b/src/format/nxo.rs
@@ -48,7 +48,7 @@ fn pad_segment(previous_segment_data: &mut Vec<u8>, offset: usize, segment: &Pro
     }
 }
 
-fn write_build_id<T>(build_id: &Option<Vec<u8>>, output_writter: &mut T) -> std::io::Result<()>
+fn write_build_id<T>(build_id: &Option<Vec<u8>>, output_writter: &mut T, text_data: &[u8]) -> std::io::Result<()>
 where
     T: Write,
 {
@@ -66,7 +66,7 @@ where
             output_writter.write_all(&build_id_data[0x10..])?;
         }
         None => {
-            output_writter.write_all(&[0; 0x20])?;
+            output_writter.write_all(&utils::calculate_sha256(text_data)?[..0x20])?;
         }
     }
     Ok(())
@@ -300,7 +300,7 @@ impl NxoFile {
         // Reserved
         output_writter.write_u32::<LittleEndian>(0)?;
 
-        write_build_id(&self.build_id, output_writter)?;
+        write_build_id(&self.build_id, output_writter, &code)?;
 
         // TODO: DSO Module Offset (unused)
         output_writter.write_u32::<LittleEndian>(0)?;
@@ -555,7 +555,7 @@ impl NxoFile {
             }
         }
 
-        write_build_id(&self.build_id, output_writter)?;
+        write_build_id(&self.build_id, output_writter, &code)?;
 
         // Compressed size
         output_writter.write_u32::<LittleEndian>(compressed_code_size)?;