diff --git a/src/Expr.cc b/src/Expr.cc
index 68c0ad1636..d03df0568f 100644
--- a/src/Expr.cc
+++ b/src/Expr.cc
@@ -4368,7 +4368,7 @@ ValPtr LambdaExpr::Eval(Frame* f) const {
 }
 
 void LambdaExpr::ExprDescribe(ODesc* d) const {
-    d->Add(expr_name(Tag()));
+    type->Describe(d);
 
     if ( captures && d->IsReadable() ) {
         d->Add("[");
diff --git a/src/Func.cc b/src/Func.cc
index 1372adfeaf..ca25db62cc 100644
--- a/src/Func.cc
+++ b/src/Func.cc
@@ -672,6 +672,8 @@ std::optional<BrokerData> ScriptFunc::SerializeCaptures() const {
 
 void ScriptFunc::Describe(ODesc* d) const {
     d->Add(GetName().c_str());
+    d->AddSP(":");
+    type->Describe(d);
 
     d->NL();
     d->AddCount(frame_size);