diff --git a/installer.sh b/installer.sh
index 10fff7b..2e21bdd 100644
--- a/installer.sh
+++ b/installer.sh
@@ -27,11 +27,11 @@ echo -e "${green}Avrdude installeren...${reset}"
 sudo apt-get install bison flex byacc -y
 sudo rm -rf /opt/avrdude-7.0
 cd /opt
-wget http://download.savannah.gnu.org/releases/avrdude/avrdude-7.0.tar.gz
+sudo wget http://download.savannah.gnu.org/releases/avrdude/avrdude-7.0.tar.gz
 sudo tar xfv avrdude-7.0.tar.gz
 cd avrdude-7.0/
-./configure --enable-linuxgpio
-make
+sudo ./configure --enable-linuxgpio
+sudo make
 sudo make install
 
 # Clonen van de GrovePi repository
@@ -52,7 +52,7 @@ sudo bash install.sh
 
 # Installeren i2c-tools
 cd /opt/grovepi/Scripts/i2c-tools-3.1.0
-make
+sudo make
 sudo make install
 
 # Installeren i2c-tools python