diff --git a/src/lib.rs b/src/lib.rs
index 2d617e0..fe35b2a 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -69,12 +69,12 @@ mod deps; pub use self::deps::*;
 
 /// Implement [`Debug`] in bulk.
 #[macro_export] macro_rules! impl_debug (
-    (<$($T:ident $(: $U:ident)?),+> $S:ty|$self:ident,$w:ident|$body:block)=>{
+    (<$($T:ident $(: $U:ident)?),+> $S:ty: |$self:ident,$w:ident|$body:block)=>{
         impl <$($T$(:$U)?),+> std::fmt::Debug for $S {
             fn fmt (&$self, $w: &mut std::fmt::Formatter) -> std::fmt::Result $body
         }
     };
-    ($S:ty|$self:ident,$w:ident|$body:block)=>{
+    ($S:ty: |$self:ident,$w:ident|$body:block)=>{
         impl std::fmt::Debug for $S {
             fn fmt (&$self, $w: &mut std::fmt::Formatter) -> std::fmt::Result $body
         }
@@ -83,12 +83,12 @@ mod deps; pub use self::deps::*;
 
 /// Implement [`Display`] in bulk.
 #[macro_export] macro_rules! impl_display (
-    (<$($T:ident $(: $U:ident)?),+> $S:ty|$self:ident,$w:ident|$body:block)=>{
+    (<$($T:ident $(: $U:ident)?),+> $S:ty: |$self:ident,$w:ident|$body:block)=>{
         impl <$($T$(:$U)?),+> std::fmt::Display for $S {
             fn fmt (&$self, $w: &mut std::fmt::Formatter) -> std::fmt::Result $body
         }
     };
-    ($S:ty|$self:ident,$w:ident|$body:block)=>{
+    ($S:ty: |$self:ident,$w:ident|$body:block)=>{
         impl std::fmt::Display for $S {
             fn fmt (&$self, $w: &mut std::fmt::Formatter) -> std::fmt::Result $body
         }
diff --git a/src/term/buffer.rs b/src/term/buffer.rs
index fb2703f..e39e692 100644
--- a/src/term/buffer.rs
+++ b/src/term/buffer.rs
@@ -8,8 +8,7 @@ use ::ratatui::buffer::Cell;
 }
 
 impl_from!(BigBuffer: |size:(usize, usize)| Self::new(size.0, size.1));
-
-impl_debug!(BigBuffer |self, f| { write!(f, "[BB {}x{} ({})]", self.width, self.height, self.content.len()) });
+impl_debug!(BigBuffer: |self, f| { write!(f, "[BB {}x{} ({})]", self.width, self.height, self.content.len()) });
 
 impl BigBuffer {
     pub fn new (width: usize, height: usize) -> Self {