diff --git a/.changeset/busy-chairs-itch.md b/.changeset/busy-chairs-itch.md
new file mode 100644
index 0000000000..ef8b0b8df4
--- /dev/null
+++ b/.changeset/busy-chairs-itch.md
@@ -0,0 +1,5 @@
+---
+'@backstage/ui': patch
+---
+
+Add missing class for flex: baseline
diff --git a/packages/ui/css/styles.css b/packages/ui/css/styles.css
index 26a4fa28b3..88be061ba5 100644
--- a/packages/ui/css/styles.css
+++ b/packages/ui/css/styles.css
@@ -8797,6 +8797,10 @@
   align-items: end;
 }
 
+.bui-align-baseline {
+  align-items: baseline;
+}
+
 .bui-align-stretch {
   align-items: stretch;
 }
diff --git a/packages/ui/src/css/utilities/flex.css b/packages/ui/src/css/utilities/flex.css
index d68c63556f..fa2b7b5ff2 100644
--- a/packages/ui/src/css/utilities/flex.css
+++ b/packages/ui/src/css/utilities/flex.css
@@ -10,6 +10,10 @@
   align-items: end;
 }
 
+.bui-align-baseline {
+  align-items: baseline;
+}
+
 .bui-align-stretch {
   align-items: stretch;
 }