diff --git a/install-php-extensions.sh b/install-php-extensions.sh
index 108e1ce..59a7e3f 100644
--- a/install-php-extensions.sh
+++ b/install-php-extensions.sh
@@ -8,6 +8,6 @@ function installPhpExtension() {
 }
 
 installPhpExtension igbinary
-installPhpExtension apc
+apt-get install php-apc