diff --git a/common/hooks/post-install/00-uncompress-manpages.sh b/common/hooks/post-install/00-uncompress-manpages.sh
index d5a1d31fe3..c7a4e47015 100644
--- a/common/hooks/post-install/00-uncompress-manpages.sh
+++ b/common/hooks/post-install/00-uncompress-manpages.sh
@@ -16,6 +16,6 @@ hook() {
 		rm $f
 	done
 
-	find $mandir -type f -name '*.gz' -exec gunzip -v {} + &>/dev/null
-	find $mandir -type f -name '*.bz2' -exec bunzip2 -v {} + &>/dev/null
+	find $mandir -type f -name '*.gz' -exec gunzip -v -f {} + &>/dev/null
+	find $mandir -type f -name '*.bz2' -exec bunzip2 -v -f {} + &>/dev/null
 }