diff --git a/src/lib/file.cpp b/src/lib/file.cpp
index 43f3949..08fa694 100644
--- a/src/lib/file.cpp
+++ b/src/lib/file.cpp
@@ -28,7 +28,7 @@ File::File(std::string path, char mode, uint64_t cursorPosition): mode(mode), pa
     try{
         std::filesystem::path filePath = path;
         this->size = ErrorOr<uint64_t>(std::filesystem::file_size(filePath));
-    }catch(std::exception e){
+    }catch(std::exception& e){
         this->size = ErrorOr<uint64_t>(true, ErrorCodes::FILE_NOT_FOUND);
         
     }
@@ -88,7 +88,7 @@ void File::open(){
     try{
         std::filesystem::path filePath = this->path;
         this->size = ErrorOr<uint64_t>(std::filesystem::file_size(filePath));
-    }catch(std::exception e){
+    }catch(std::exception& e){
         this->size = ErrorOr<uint64_t>(true, ErrorCodes::FILE_NOT_FOUND);
     }
 }
@@ -114,7 +114,7 @@ ErrorOr<uint8_t> File::readByte(){
     try{
         this->fileStream.read(byte, 1);
         delete byte;
-    }catch(std::exception e){
+    }catch(std::exception& e){
         return ErrorOr<uint8_t>(true, ErrorCodes::FILE_READ_FAILED);
     }
     return ErrorOr<uint8_t>((uint8_t) *byte);
@@ -136,7 +136,7 @@ ErrorOr<std::vector<uint8_t>> File::read(uint64_t bytes){
             data.push_back((uint8_t) buffer[i]);
         }
         delete[] buffer;
-    }catch(std::exception e){
+    }catch(std::exception& e){
         return ErrorOr<std::vector<uint8_t>>(true, ErrorCodes::FILE_READ_FAILED);
     }
     return ErrorOr<std::vector<uint8_t>>(data);