diff --git a/source/plugins/core/index.mjs b/source/plugins/core/index.mjs
index 0f8bdcb6..720b555b 100644
--- a/source/plugins/core/index.mjs
+++ b/source/plugins/core/index.mjs
@@ -97,15 +97,15 @@
       data.meta = {version:conf.package.version, author:conf.package.author}
 
     //Debug flags
-      if ((dflags.includes("--cakeday"))||(dflags.includes("cakeday"))) {
+      if (dflags.includes("--cakeday")) {
         console.debug(`metrics/compute/${login} > applying dflag --cakeday`)
         computed.cakeday = true
       }
-      if ((dflags.includes("--hireable"))||(dflags.includes("hireable"))) {
+      if (dflags.includes("--hireable")) {
         console.debug(`metrics/compute/${login} > applying dflag --hireable`)
         data.user.isHireable = true
       }
-      if ((dflags.includes("--halloween"))||(dflags.includes("halloween"))) {
+      if (dflags.includes("--halloween")) {
         console.debug(`metrics/compute/${login} > applying dflag --halloween`)
         //Haloween color replacer
           const halloween = content => content
@@ -125,6 +125,10 @@
             return {name:"dflag.halloween", result:true}
           })())
       }
+      if (dflags.includes("--error")) {
+        console.debug(`metrics/compute/${login} > applying dflag --error`)
+        throw new Error("Failed as requested by --error flag")
+      }
 
     //Results
       return null
diff --git a/source/plugins/core/metadata.yml b/source/plugins/core/metadata.yml
index 81aaa0ff..c4602837 100644
--- a/source/plugins/core/metadata.yml
+++ b/source/plugins/core/metadata.yml
@@ -187,6 +187,7 @@ inputs:
       - --cakeday
       - --hireable
       - --halloween
+      - --error
 
   # Dry-run mode (perform generation without pushing it)
   dryrun: