diff --git a/configure.sh b/configure.sh
index 1ba4454..e9c1ae6 100755
--- a/configure.sh
+++ b/configure.sh
@@ -86,10 +86,10 @@ else
   fi
 fi
 
-# Extract archive
+# Extract archive (OpenBDS-compliant version)
 
 echo "$TAG Extracting $ARCHIVE..."
-tar -xJf $ARCHIVE
+unxz -c < $ARCHIVE | tar -xf -
 
 # Create build folder