diff --git a/install.py b/install.py
index 8f21ff4..a73deb8 100644
--- a/install.py
+++ b/install.py
@@ -7,8 +7,8 @@ is_linux = os_type == "linux"
 is_macos = os_type == "darwin"
 is_windows = os_type == "windows"
 
-is_debian = os.system('apt --version > /dev/null 2>&1') >> 8 == 0
-is_rhel = os.system('dnf --version > /dev/null 2>&1') >> 8 == 0
+is_debian = is_linux and os.system('apt --version > /dev/null 2>&1') >> 8 == 0
+is_rhel = is_linux and os.system('dnf --version > /dev/null 2>&1') >> 8 == 0
 
 def check_os():
     if is_linux or is_macos or is_windows: