diff --git a/scripts/extract-ikconfig b/scripts/extract-ikconfig
index be2e579..8187e6f 100755
--- a/scripts/extract-ikconfig
+++ b/scripts/extract-ikconfig
@@ -21,7 +21,7 @@
     let start="$start + 8"
     let size="$end - $start"
 
-    head --bytes="$end" "$file" | tail --bytes="$size" | zcat
+    dd if="$file" ibs=1 skip="$start" count="$size" 2>/dev/null | zcat
 
     clean_up
     exit 0