diff --git a/examples/compiled/bar_negative_horizontal_label.vg.json b/examples/compiled/bar_negative_horizontal_label.vg.json
index 08f2c46abe..021382b43c 100644
--- a/examples/compiled/bar_negative_horizontal_label.vg.json
+++ b/examples/compiled/bar_negative_horizontal_label.vg.json
@@ -173,7 +173,6 @@
       "labelPadding": 4,
       "ticks": false,
       "labelAlign": "right",
-      "labelBaseline": null,
       "zindex": 0
     }
   ]
diff --git a/src/compile/axis/assemble.ts b/src/compile/axis/assemble.ts
index a102511bee..9e0ed0919f 100644
--- a/src/compile/axis/assemble.ts
+++ b/src/compile/axis/assemble.ts
@@ -5,7 +5,7 @@ import {POSITION_SCALE_CHANNELS} from '../../channel';
 import {defaultTitle, FieldDefBase} from '../../channeldef';
 import {Config} from '../../config';
 import {isText} from '../../title';
-import {getFirstDefined, isEmpty, replaceAll} from '../../util';
+import {contains, getFirstDefined, isEmpty, replaceAll} from '../../util';
 import {isSignalRef, VgEncodeChannel, VgValueRef} from '../../vega.schema';
 import {exprFromValueOrSignalRef} from '../common';
 import {Model} from '../model';
@@ -101,6 +101,12 @@ export function assembleAxis(
         delete axis[prop];
       } // else do nothing since the property already supports signal
     }
+
+    // Do not pass labelAlign/Baseline = null to Vega since it won't pass the schema
+    // Note that we need to use null so the default labelAlign is preserved.
+    if (contains(['labelAlign', 'labelBaseline'], prop) && axis[prop] === null) {
+      delete axis[prop];
+    }
   }
 
   if (kind === 'grid') {