diff --git a/auto-cpufreq-installer b/auto-cpufreq-installer
index 6825e61..268bb8e 100755
--- a/auto-cpufreq-installer
+++ b/auto-cpufreq-installer
@@ -148,7 +148,7 @@ function tool_install {
 separator
 if [ -f /etc/debian_version ]; then
 	detected_distro "Debian based"
-	apt install python3-dev python3-pip python3-venv python3-setuptools dmidecode libgirepository1.0-dev libcairo2-dev libgtk-3 gcc -y
+	apt install python3-dev python3-pip python3-venv python3-setuptools dmidecode libgirepository1.0-dev libcairo2-dev libgtk-3-dev gcc -y
 	completed
 	complete_msg
 elif [ -f /etc/redhat-release ]; then