diff --git a/zipper/tools.cpp b/zipper/tools.cpp
index db5d2c2..fc9ab11 100644
--- a/zipper/tools.cpp
+++ b/zipper/tools.cpp
@@ -44,6 +44,7 @@ void getFileCrc(std::istream& input_stream, std::vector<char>& buff, unsigned lo
 
   } while (size_read>0);
 
+  input_stream.clear();
   input_stream.seekg(0);
   result_crc = calculate_crc;
 }
diff --git a/zipper/zipper.cpp b/zipper/zipper.cpp
index b31d101..ee920cc 100644
--- a/zipper/zipper.cpp
+++ b/zipper/zipper.cpp
@@ -95,7 +95,7 @@ namespace zipper {
 			int err = ZIP_OK;
 			unsigned long crcFile = 0;
 
-			zip_fileinfo zi;
+			zip_fileinfo zi = { 0 };
 			size_t size_read;
 
 			std::vector<char> buff;