diff --git a/set-up-system.sh b/set-up-system.sh
index 6d243e1..6e2cca2 100644
--- a/set-up-system.sh
+++ b/set-up-system.sh
@@ -21,6 +21,12 @@ cat << 'EOF'
 
 EOF
 
+# check if on fedora
+if ! grep -q '^ID=fedora$' /etc/os-release 2>/dev/null; then
+    banner_top "errrm... why aren't you on fedora"
+    exit 1
+fi
+
 # configure dnf
 banner_top "configuring dnf"
 sudo tee /etc/dnf/dnf.conf << 'EOF'