diff --git a/install_zsh.sh b/install_zsh.sh
index 97176bf..3140629 100644
--- a/install_zsh.sh
+++ b/install_zsh.sh
@@ -1,12 +1,8 @@
 #!/bin/sh
 
 # Check if necessary things are installed
-if ! command -v git &> /dev/null; then
-    echo "This script requires git"
-    exit 1
-fi
-if ! command -v zsh &> /dev/null; then
-    echo "This script requires zsh"
+if [ ! command -v git &> /dev/null ] || [ ! command -v zsh &> /dev/null ]; then
+    echo "This script requires git and zsh"
     exit 1
 fi