diff --git a/data/supported-extensions b/data/supported-extensions
index 6d81c9c..6fa8e1c 100644
--- a/data/supported-extensions
+++ b/data/supported-extensions
@@ -96,6 +96,7 @@ wddx 5.5 5.6 7.0 7.1 7.2 7.3
 xdebug 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0 8.1
 xhprof 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0 8.1
 xlswriter 7.0 7.1 7.2 7.3 7.4 8.0
+xmldiff 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0 8.1
 xmlrpc 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0 8.1
 xsl 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0 8.1
 yaml 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0 8.1
diff --git a/install-php-extensions b/install-php-extensions
index 2e74eca..2d8ec5b 100755
--- a/install-php-extensions
+++ b/install-php-extensions
@@ -926,6 +926,13 @@ buildRequiredPackageLists() {
 			xlswriter@debian)
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile zlib1g-dev"
 				;;
+			xmldiff@alpine)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libstdc++"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libxml2-dev"
+				;;
+			xmldiff@debian)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libxml2-dev"
+				;;
 			xmlrpc@alpine)
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libxml2-dev"
 				;;
@@ -1593,7 +1600,7 @@ installRemoteModule() {
 				if test $PHP_MAJMIN_VERSION -ge 800; then
 					installRemoteModule_version=beta
 				elif test "$DISTRO_VERSION" = debian@8; then
-					# in Debian Jessie we have librammitmq version 0.5.2
+					# in Debian Jessie we have librabbitmq version 0.5.2
 					installRemoteModule_version=1.9.3
 				elif test $PHP_MAJMIN_VERSION -le 505; then
 					installRemoteModule_version=1.9.4