diff --git a/.changeset/honest-pianos-smell.md b/.changeset/honest-pianos-smell.md
new file mode 100644
index 0000000000..56b87ce72d
--- /dev/null
+++ b/.changeset/honest-pianos-smell.md
@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-jenkins': patch
+---
+
+Support showing build details for branches with slashes in their names
diff --git a/plugins/jenkins/src/components/BuildWithStepsPage/BuildWithStepsPage.tsx b/plugins/jenkins/src/components/BuildWithStepsPage/BuildWithStepsPage.tsx
index 1b7ccb8121..192f84458d 100644
--- a/plugins/jenkins/src/components/BuildWithStepsPage/BuildWithStepsPage.tsx
+++ b/plugins/jenkins/src/components/BuildWithStepsPage/BuildWithStepsPage.tsx
@@ -50,7 +50,9 @@ const BuildWithStepsView = () => {
   const projectName = useProjectSlugFromEntity();
   const { branch, buildNumber } = useRouteRefParams(buildRouteRef);
   const classes = useStyles();
-  const buildPath = `${projectName}/${branch}/${buildNumber}`;
+  const buildPath = `${projectName}/${encodeURIComponent(
+    branch,
+  )}/${buildNumber}`;
   const [{ value }] = useBuildWithSteps(buildPath);
 
   return (
diff --git a/plugins/jenkins/src/components/BuildsPage/lib/CITable/CITable.tsx b/plugins/jenkins/src/components/BuildsPage/lib/CITable/CITable.tsx
index 57ffe48649..12d221d928 100644
--- a/plugins/jenkins/src/components/BuildsPage/lib/CITable/CITable.tsx
+++ b/plugins/jenkins/src/components/BuildsPage/lib/CITable/CITable.tsx
@@ -118,7 +118,7 @@ const generatedColumns: TableColumn[] = [
         <Link
           component={RouterLink}
           to={generatePath(buildRouteRef.path, {
-            branch: row.source.branchName,
+            branch: encodeURIComponent(row.source.branchName),
             buildNumber: row.buildNumber.toString(),
           })}
         >