diff --git a/UnityPy/export/ShaderConverter.py b/UnityPy/export/ShaderConverter.py
index 66f27983..9e112856 100644
--- a/UnityPy/export/ShaderConverter.py
+++ b/UnityPy/export/ShaderConverter.py
@@ -68,11 +68,11 @@ def ConvertSerializedShader(m_Shader: Shader) -> str:
         decompressedSize = m_Shader.decompressedLengths[i]
 
         compressedBytes = compressed_blob[
-            int(m_Shader.offsets[i][0]) : int(m_Shader.offsets[i][0])
-            + compressedSize[0]
+            int(m_Shader.offsets[i]) : int(m_Shader.offsets[i])
+            + compressedSize
         ]
         decompressedBytes = CompressionHelper.decompress_lz4(
-            compressedBytes, decompressedSize[0]
+            compressedBytes, decompressedSize
         )
 
         shaderPrograms.append(
@@ -654,7 +654,7 @@ def Export(self) -> str:
 
             sb.append("}\n")
 
-        if hasattr(self, "m_LocalKeywords") and len(self.m_LocalKeywords) > 0:
+        if hasattr(self, "m_LocalKeywords") and getattr(self, "m_LocalKeywords") is not None and len(self.m_LocalKeywords) > 0 :
             sb.append("Local Keywords { ")
             for keyword in self.m_LocalKeywords:
                 sb.append('"{0}" '.format(keyword))
diff --git a/UnityPy/tools/extractor.py b/UnityPy/tools/extractor.py
index 762e6bac..7983857d 100644
--- a/UnityPy/tools/extractor.py
+++ b/UnityPy/tools/extractor.py
@@ -179,7 +179,7 @@ def exportMesh(obj: Mesh, fp: str, extension=".obj") -> List[int]:
     return [(obj.assets_file, obj.path_id)]
 
 
-def exporShader(obj: Shader, fp: str, extension=".txt") -> List[int]:
+def exportShader(obj: Shader, fp: str, extension=".txt") -> List[int]:
     if not extension:
         extension = ".txt"
     with open(f"{fp}{extension}", "wt", encoding="utf8", newline="") as f:
@@ -295,7 +295,7 @@ def exportGameObject(obj: GameObject, fp: str, extension: str = "") -> List[int]
     ClassIDType.Font: exportFont,
     ClassIDType.Mesh: exportMesh,
     ClassIDType.MonoBehaviour: exportMonoBehaviour,
-    ClassIDType.Shader: exporShader,
+    ClassIDType.Shader: exportShader,
     ClassIDType.TextAsset: exportTextAsset,
     ClassIDType.Texture2D: exportTexture2D,
 }