diff --git a/pisi/archive.py b/pisi/archive.py
index 7673ce1b..d4205bcb 100644
--- a/pisi/archive.py
+++ b/pisi/archive.py
@@ -187,7 +187,7 @@ class ArchiveBzip2(ArchiveBase):
         import bz2
         bz2_file = bz2.BZ2File(self.file_path, "r")
         output = open(output_path, "w")
-        output.write(bz2_file.read())
+        output.write(bz2_file.read().decode())
         output.close()
         bz2_file.close()
 
@@ -213,7 +213,7 @@ class ArchiveGzip(ArchiveBase):
         import gzip
         gzip_file = gzip.GzipFile(self.file_path, "r")
         output = open(output_path, "w")
-        output.write(gzip_file.read())
+        output.write(gzip_file.read().decode())
         output.close()
         gzip_file.close()
 
@@ -240,7 +240,7 @@ class ArchiveLzma(ArchiveBase):
         import lzma
         lzma_file = lzma.LZMAFile(self.file_path, "r")
         output = open(output_path, "w")
-        output.write(lzma_file.read())
+        output.write(lzma_file.read().decode())
         output.close()
         lzma_file.close()
 
@@ -497,6 +497,7 @@ class ArchiveTarZ(ArchiveBase):
             pass
         self.tar.close()
 
+
 class Archive7Zip(ArchiveBase):
     """Archive7Zip handles 7-Zip archives."""