diff --git a/src/protocol/ast.rs b/src/protocol/ast.rs
index 3978a7d30a793bf1c852e84768971e4221425a25..5ba51755ee94a3ca7ac27b1ef375c73608ea19f8 100644
--- a/src/protocol/ast.rs
+++ b/src/protocol/ast.rs
@@ -1301,7 +1301,7 @@ pub struct BreakStatement {
     pub span: InputSpan, // of the "break" keyword
     pub label: Option<Identifier>,
     // Phase 2: linker
-    pub target: Option<EndWhileStatementId>,
+    pub target: EndWhileStatementId, // invalid if not yet set
 }
 
 #[derive(Debug, Clone)]
@@ -1311,7 +1311,7 @@ pub struct ContinueStatement {
     pub span: InputSpan, // of the "continue" keyword
     pub label: Option<Identifier>,
     // Phase 2: linker
-    pub target: Option<WhileStatementId>,
+    pub target: WhileStatementId, // invalid if not yet set
 }
 
 #[derive(Debug, Clone)]
@@ -1388,7 +1388,7 @@ pub struct GotoStatement {
     pub span: InputSpan, // of the "goto" keyword
     pub label: Identifier,
     // Phase 2: linker
-    pub target: Option<LabeledStatementId>,
+    pub target: LabeledStatementId, // invalid if not yet set
 }
 
 #[derive(Debug, Clone)]