diff --git a/lib/analyze-action-post.js b/lib/analyze-action-post.js
index f3a8d8bda..c30cd53a4 100644
--- a/lib/analyze-action-post.js
+++ b/lib/analyze-action-post.js
@@ -125711,10 +125711,9 @@ function getArtifactSuffix(matrix) {
   let suffix = "";
   if (matrix) {
     try {
-      for (const [, matrixVal] of Object.entries(
-        JSON.parse(matrix)
-      ).sort())
-        suffix += `-${matrixVal}`;
+      const matrixObject = JSON.parse(matrix);
+      for (const matrixKey of Object.keys(matrixObject).sort())
+        suffix += `-${matrixObject[matrixKey]}`;
     } catch {
       core12.info(
         "Could not parse user-specified `matrix` input into JSON. The debug artifact will not be named with the user's `matrix` input."
diff --git a/lib/init-action-post.js b/lib/init-action-post.js
index 7a9ddd21d..7deaec120 100644
--- a/lib/init-action-post.js
+++ b/lib/init-action-post.js
@@ -130434,10 +130434,9 @@ function getArtifactSuffix(matrix) {
   let suffix = "";
   if (matrix) {
     try {
-      for (const [, matrixVal] of Object.entries(
-        JSON.parse(matrix)
-      ).sort())
-        suffix += `-${matrixVal}`;
+      const matrixObject = JSON.parse(matrix);
+      for (const matrixKey of Object.keys(matrixObject).sort())
+        suffix += `-${matrixObject[matrixKey]}`;
     } catch {
       core12.info(
         "Could not parse user-specified `matrix` input into JSON. The debug artifact will not be named with the user's `matrix` input."
diff --git a/lib/start-proxy-action-post.js b/lib/start-proxy-action-post.js
index d581716db..122c056af 100644
--- a/lib/start-proxy-action-post.js
+++ b/lib/start-proxy-action-post.js
@@ -124624,10 +124624,9 @@ function getArtifactSuffix(matrix) {
   let suffix = "";
   if (matrix) {
     try {
-      for (const [, matrixVal] of Object.entries(
-        JSON.parse(matrix)
-      ).sort())
-        suffix += `-${matrixVal}`;
+      const matrixObject = JSON.parse(matrix);
+      for (const matrixKey of Object.keys(matrixObject).sort())
+        suffix += `-${matrixObject[matrixKey]}`;
     } catch {
       core12.info(
         "Could not parse user-specified `matrix` input into JSON. The debug artifact will not be named with the user's `matrix` input."
diff --git a/lib/upload-sarif-action-post.js b/lib/upload-sarif-action-post.js
index 546458254..1a369d779 100644
--- a/lib/upload-sarif-action-post.js
+++ b/lib/upload-sarif-action-post.js
@@ -124646,10 +124646,9 @@ function getArtifactSuffix(matrix) {
   let suffix = "";
   if (matrix) {
     try {
-      for (const [, matrixVal] of Object.entries(
-        JSON.parse(matrix)
-      ).sort())
-        suffix += `-${matrixVal}`;
+      const matrixObject = JSON.parse(matrix);
+      for (const matrixKey of Object.keys(matrixObject).sort())
+        suffix += `-${matrixObject[matrixKey]}`;
     } catch {
       core12.info(
         "Could not parse user-specified `matrix` input into JSON. The debug artifact will not be named with the user's `matrix` input."
diff --git a/src/debug-artifacts.ts b/src/debug-artifacts.ts
index 3d5d45e94..66b2debce 100644
--- a/src/debug-artifacts.ts
+++ b/src/debug-artifacts.ts
@@ -260,10 +260,9 @@ export function getArtifactSuffix(matrix: string | undefined): string {
   let suffix = "";
   if (matrix) {
     try {
-      for (const [, matrixVal] of Object.entries(
-        JSON.parse(matrix) as any[][],
-      ).sort())
-        suffix += `-${matrixVal}`;
+      const matrixObject = JSON.parse(matrix) as any[][];
+      for (const matrixKey of Object.keys(matrixObject).sort())
+        suffix += `-${matrixObject[matrixKey]}`;
     } catch {
       core.info(
         "Could not parse user-specified `matrix` input into JSON. The debug artifact will not be named with the user's `matrix` input.",