diff --git a/tokio-macros/src/entry.rs b/tokio-macros/src/entry.rs
index 8816a43af54..ada48a135e0 100644
--- a/tokio-macros/src/entry.rs
+++ b/tokio-macros/src/entry.rs
@@ -321,6 +321,12 @@ fn parse_knobs(
         quote! {}
     };
 
+    let tail_semicolon = match input.sig.output {
+        syn::ReturnType::Default => quote! {
+            ;
+        },
+        syn::ReturnType::Type(..) => quote! {},
+    };
     let body = &input.block;
     let brace_token = input.block.brace_token;
     input.block = syn::parse2(quote_spanned! {last_stmt_end_span=>
@@ -331,7 +337,7 @@ fn parse_knobs(
                 .enable_all()
                 .build()
                 .expect("Failed building the Runtime")
-                .block_on(body)
+                .block_on(body)#tail_semicolon
         }
     })
     .expect("Parsing failure");