diff --git a/install.sh b/install.sh
index 887f00c..4a7ab3d 100644
--- a/install.sh
+++ b/install.sh
@@ -8,7 +8,7 @@ yum update -y
 # Compilers and related tools:
 yum groupinstall -y "development tools"
 # Libraries needed during compilation to enable all features of Python:
-yum install -y zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel expat-devel
+yum install -y zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel expat-devel libffi-devel
 # If you are on a clean "minimal" install of CentOS you also need the wget tool:
 yum install -y wget