diff --git a/packages/mui-material/src/LinearProgress/LinearProgress.js b/packages/mui-material/src/LinearProgress/LinearProgress.js
index f5e77d32b6b850..9046d1e69dbe38 100644
--- a/packages/mui-material/src/LinearProgress/LinearProgress.js
+++ b/packages/mui-material/src/LinearProgress/LinearProgress.js
@@ -338,6 +338,13 @@ const LinearProgressBar2 = styled('span', {
           backgroundColor: 'var(--LinearProgressBar2-barColor, currentColor)',
         },
       },
+      {
+        props: ({ ownerState }) =>
+          ownerState.variant !== 'buffer' && ownerState.color === 'inherit',
+        style: {
+          backgroundColor: 'currentColor',
+        },
+      },
       {
         props: {
           color: 'inherit',