diff --git a/install-php-extensions b/install-php-extensions
index 7279e89..e927605 100755
--- a/install-php-extensions
+++ b/install-php-extensions
@@ -3559,6 +3559,13 @@ installRemoteModule() {
 					;;
 			esac
 			;;
+		zstd)
+			if test -z "$installRemoteModule_version"; then
+				if test $PHP_MAJMIN_VERSION -le 506; then
+					installRemoteModule_version=0.11.0
+				fi
+			fi
+			;;
 	esac
 	if test $installRemoteModule_manuallyInstalled -eq 0; then
 		if test -n "$installRemoteModule_path"; then