diff --git a/build_manifest.sh b/build_manifest.sh
index d4bc2d3ff..3a19417a9 100755
--- a/build_manifest.sh
+++ b/build_manifest.sh
@@ -42,7 +42,7 @@ for PLUGINFILE in plugins/*; do
 	disabled=
 	# shellcheck disable=SC2162
 	while read LINE || [[ -n "$LINE" ]]; do
-		[[ $LINE =~ ^(repository|commit|disabled)=(.*)$ ]]
+		[[ $LINE =~ ^(repository|commit|disabled|warning)=(.*)$ ]]
 		eval "${BASH_REMATCH[1]}=\"${BASH_REMATCH[2]}\""
 	done < "$PLUGINFILE"
 	[ -z "$disabled" ] || continue
diff --git a/build_plugin.sh b/build_plugin.sh
index 343adf1ed..9ba646eb3 100755
--- a/build_plugin.sh
+++ b/build_plugin.sh
@@ -42,7 +42,7 @@ RUNELITE_VERSION="$(cat "$SCRIPT_HOME/runelite.version")"
 disabled=
 # shellcheck disable=SC2162
 while read LINE || [[ -n "$LINE" ]]; do
-	[[ $LINE =~ ^(repository|commit|disabled)=(.*)$ ]]
+	[[ $LINE =~ ^(repository|commit|disabled|warning)=(.*)$ ]]
 	eval "${BASH_REMATCH[1]}=\"${BASH_REMATCH[2]}\""
 done < "$PLUGINFILE"
 [ -z "$disabled" ] || exit 0
@@ -81,6 +81,7 @@ SIGNING_KEY="" REPO_CREDS="" gradle \
 	-DrlpluginOutputDirectory="$BUILDDIR" \
 	-DrlpluginPluginID="$PLUGIN_ID" \
 	-DrlpluginCommit="$commit" \
+	-DrlpluginWarning="$warning" \
 	rlpluginPackageJar rlpluginEmitManifest
 
 [ -s "$BUILDDIR/plugin.jar" ]
diff --git a/package.gradle b/package.gradle
index 7a0893905..a4133bdc5 100644
--- a/package.gradle
+++ b/package.gradle
@@ -68,6 +68,9 @@ allprojects {
 			def manifest = new ExternalPluginManifest()
 			manifest.internalName = System.properties["rlpluginPluginID"]
 			manifest.commit = System.properties["rlpluginCommit"]
+			if (System.properties["rlpluginWarning"]) {
+				manifest.warning = System.properties["rlpluginWarning"];
+			}
 
 			def pluginJar = new File(System.properties["rlpluginOutputDirectory"], "plugin.jar");
 			manifest.hash = Files.asByteSource(pluginJar)
@@ -147,6 +150,7 @@ class ExternalPluginManifest {
 	String version;
 	String author;
 	String description;
+	String warning;
 	String[] tags;
 	URL support;
 	boolean hasIcon;