diff --git a/build.sh b/build.sh
index e2e3be0..53266d9 100755
--- a/build.sh
+++ b/build.sh
@@ -9,7 +9,7 @@ echo "[+] Cloning buildroot"
 git clone https://github.com/buildroot/buildroot.git target/buildroot
 echo "[+] Building the keygen"
 mkdir -p conf/usr/sbin
-gcc -o conf/usr/sbin/cfgbin keygen/keygen.c
+gcc -lm -static -o conf/usr/sbin/cfgbin keygen/keygen.c
 strip conf/usr/sbin/cfgbin
 echo "[+] Adding customization files"
 cp -R buildroot/* target/buildroot # copy buildroot configs