diff --git a/packages/node/src/utils/normalize.spec.ts b/packages/node/src/utils/normalize.spec.ts
index 49f827268eb6d..215132af4ce58 100644
--- a/packages/node/src/utils/normalize.spec.ts
+++ b/packages/node/src/utils/normalize.spec.ts
@@ -61,7 +61,7 @@ describe('normalizeBuildOptions', () => {
         assets: [
           'apps/nodeapp/src/assets',
           {
-            input: '/outsideroot',
+            input: 'outsideproj',
             output: 'output',
             glob: '**/*',
             ignore: ['**/*.json']
@@ -78,7 +78,7 @@ describe('normalizeBuildOptions', () => {
         glob: '**/*'
       },
       {
-        input: '/outsideroot',
+        input: '/root/outsideproj',
         output: 'output',
         glob: '**/*',
         ignore: ['**/*.json']
diff --git a/packages/node/src/utils/normalize.ts b/packages/node/src/utils/normalize.ts
index c0398470dd146..a0a74da9c5d8c 100644
--- a/packages/node/src/utils/normalize.ts
+++ b/packages/node/src/utils/normalize.ts
@@ -62,8 +62,12 @@ function normalizeAssets(
           'An asset cannot be written to a location outside of the output path.'
         );
       }
+
+      const assetPath = normalize(asset.input);
+      const resolvedAssetPath = resolve(root, assetPath);
       return {
         ...asset,
+        input: resolvedAssetPath,
         // Now we remove starting slash to make Webpack place it from the output root.
         output: asset.output.replace(/^\//, '')
       };
diff --git a/packages/web/src/utils/normalize.spec.ts b/packages/web/src/utils/normalize.spec.ts
index cadbd6bd6f489..8d4be618f625c 100644
--- a/packages/web/src/utils/normalize.spec.ts
+++ b/packages/web/src/utils/normalize.spec.ts
@@ -57,7 +57,7 @@ describe('normalizeBuildOptions', () => {
         assets: [
           'apps/nodeapp/src/assets',
           {
-            input: '/outsideroot',
+            input: 'outsideproj',
             output: 'output',
             glob: '**/*',
             ignore: ['**/*.json']
@@ -74,7 +74,7 @@ describe('normalizeBuildOptions', () => {
         glob: '**/*'
       },
       {
-        input: '/outsideroot',
+        input: '/root/outsideproj',
         output: 'output',
         glob: '**/*',
         ignore: ['**/*.json']
diff --git a/packages/web/src/utils/normalize.ts b/packages/web/src/utils/normalize.ts
index ad2df66021efb..d0f01258987de 100644
--- a/packages/web/src/utils/normalize.ts
+++ b/packages/web/src/utils/normalize.ts
@@ -62,8 +62,12 @@ function normalizeAssets(
           'An asset cannot be written to a location outside of the output path.'
         );
       }
+
+      const assetPath = normalize(asset.input);
+      const resolvedAssetPath = resolve(root, assetPath);
       return {
         ...asset,
+        input: resolvedAssetPath,
         // Now we remove starting slash to make Webpack place it from the output root.
         output: asset.output.replace(/^\//, '')
       };