diff --git a/wo/cli/plugins/stack.py b/wo/cli/plugins/stack.py
index 46a2643..17f8d63 100644
--- a/wo/cli/plugins/stack.py
+++ b/wo/cli/plugins/stack.py
@@ -184,10 +184,8 @@ class WOStackController(CementBaseController):
             if pargs.php72:
                 Log.debug(self, "Setting apt_packages variable for PHP 7.2")
                 if not (WOAptGet.is_installed(self, 'php7.2-fpm')):
-                    apt_packages = apt_packages + WOVar.wo_php72
-                    if not (WOAptGet.is_installed(self, 'php7.3-fpm') or
-                            WOAptGet.is_installed(self, 'php7.4-fpm')):
-                        apt_packages = apt_packages + WOVar.wo_php_extra
+                    apt_packages = (apt_packages + WOVar.wo_php72 +
+                                    WOVar.wo_php_extra)
                 else:
                     Log.debug(self, "PHP 7.2 already installed")
                     Log.info(self, "PHP 7.2 already installed")
@@ -196,10 +194,8 @@ class WOStackController(CementBaseController):
             if pargs.php73:
                 Log.debug(self, "Setting apt_packages variable for PHP 7.3")
                 if not WOAptGet.is_installed(self, 'php7.3-fpm'):
-                    apt_packages = apt_packages + WOVar.wo_php73
-                    if not (WOAptGet.is_installed(self, 'php7.2-fpm') or
-                            WOAptGet.is_installed(self, 'php7.4-fpm')):
-                        apt_packages = apt_packages + WOVar.wo_php_extra
+                    apt_packages = (apt_packages + WOVar.wo_php73 +
+                                    WOVar.wo_php_extra)
                 else:
                     Log.debug(self, "PHP 7.3 already installed")
                     Log.info(self, "PHP 7.3 already installed")
@@ -208,10 +204,8 @@ class WOStackController(CementBaseController):
             if pargs.php74:
                 Log.debug(self, "Setting apt_packages variable for PHP 7.4")
                 if not WOAptGet.is_installed(self, 'php7.4-fpm'):
-                    apt_packages = apt_packages + WOVar.wo_php74
-                    if not (WOAptGet.is_installed(self, 'php7.3-fpm') or
-                            WOAptGet.is_installed(self, 'php7.2-fpm')):
-                        apt_packages = apt_packages + WOVar.wo_php_extra
+                    apt_packages = (apt_packages + WOVar.wo_php74 +
+                                    WOVar.wo_php_extra)
                 else:
                     Log.debug(self, "PHP 7.4 already installed")
                     Log.info(self, "PHP 7.4 already installed")
diff --git a/wo/core/variables.py b/wo/core/variables.py
index d3d773a..423f141 100644
--- a/wo/core/variables.py
+++ b/wo/core/variables.py
@@ -150,7 +150,7 @@ class WOVar():
     for module in wo_module:
         wo_php74 = wo_php74 + ["php7.4-{0}".format(module)]
 
-    wo_php_extra = ["php-memcached", "php-imagick",
+    wo_php_extra = ["php-memcached", "php-imagick", "php-igbinary",
                     "graphviz", "php-xdebug", "php-msgpack", "php-redis"]
 
     wo_mysql = ["mariadb-server", "percona-toolkit"]