diff --git a/tests/baselines/reference/controlFlowIIFE.types b/tests/baselines/reference/controlFlowIIFE.types
index 6173e79dbbb..7cf4337b53b 100644
--- a/tests/baselines/reference/controlFlowIIFE.types
+++ b/tests/baselines/reference/controlFlowIIFE.types
@@ -118,7 +118,7 @@ maybeNumber++;
 
 if (maybeNumber !== undefined) {
 >maybeNumber !== undefined : boolean
->maybeNumber : number | undefined
+>maybeNumber : number
 >undefined : undefined
 
     maybeNumber++;