diff --git a/src/log_stubs.rs b/src/log_stubs.rs
index 477e0f8..429a458 100644
--- a/src/log_stubs.rs
+++ b/src/log_stubs.rs
@@ -11,22 +11,22 @@
     }
 }
 macro_rules! error {
-    (target: $target:expr, $($arg:tt)*) => { log!(target: $target, "", $($arg)*); }
-    ($($arg:tt)*) => { log!("", $($arg)*); }
+    (target: $target:expr, $($arg:tt)+) => { log!(target: $target, "", $($arg)+); }
+    ($($arg:tt)+) => { log!("", $($arg)+); }
 }
 macro_rules! warn {
     (target: $target:expr, $($arg:tt)*) => { log!(target: $target, "", $($arg)*); }
     ($($arg:tt)*) => { log!("", $($arg)*); }
 }
 macro_rules! info {
-    (target: $target:expr, $($arg:tt)*) => { log!(target: $target, "", $($arg)*); }
-    ($($arg:tt)*) => { log!("", $($arg)*); }
+    (target: $target:expr, $($arg:tt)+) => { log!(target: $target, "", $($arg)+); }
+    ($($arg:tt)+) => { log!("", $($arg)+); }
 }
 macro_rules! debug {
-    (target: $target:expr, $($arg:tt)*) => { log!(target: $target, "", $($arg)*); }
-    ($($arg:tt)*) => { log!("", $($arg)*); }
+    (target: $target:expr, $($arg:tt)+) => { log!(target: $target, "", $($arg)+); }
+    ($($arg:tt)+) => { log!("", $($arg)+); }
 }
 macro_rules! trace {
-    (target: $target:expr, $($arg:tt)*) => { log!(target: $target, "", $($arg)*); }
-    ($($arg:tt)*) => { log!("", $($arg)*); }
+    (target: $target:expr, $($arg:tt)+) => { log!(target: $target, "", $($arg)+); }
+    ($($arg:tt)+) => { log!("", $($arg)+); }
 }