diff --git a/aliases.zsh b/aliases.zsh
index 1c489a1..21b8ee9 100644
--- a/aliases.zsh
+++ b/aliases.zsh
@@ -10,7 +10,7 @@ alias xzc='xz --best --extreme'
 alias extip='curl -LR1fs --compressed https://ipinfo.io/ | jq -Sc'
 alias jjar='java -jar'
 
-if [ -x "$(lsb_release)" ];
+if [ -x "$(which lsb_release)" ];
 then
     current_dist=`lsb_release -c -s`
     all_dkms_packages="`apt-cache rdepends --installed dkms | sed -rn 's/^ +([^ ]+)$/\1/p' | sort -iu`"