diff --git a/src/flow/binary/balancing.rs b/src/flow/binary/balancing.rs
index 23aab1f..953f59a 100644
--- a/src/flow/binary/balancing.rs
+++ b/src/flow/binary/balancing.rs
@@ -48,14 +48,11 @@ pub enum BalancingError {
 impl Display for BalancingError {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         match self {
-            Self::Height(height_error) => write!(f, "invalid AVL non-leaf height: {height_error}"),
-            Self::Balance(hl, hr) => write!(f, "unbalanced AVL node: {hl} {hr}."),
-            Self::HeightOverflow => write!(f, "AVL tree height overflow"),
+            Self::Height(height_error) => write!(f, "height error: {height_error}"),
+            Self::Balance(hl, hr) => write!(f, "unbalanced node: {hl} {hr}."),
+            Self::HeightOverflow => write!(f, "tree height overflow"),
             Self::HeightMismatch { children, parent } => {
-                write!(
-                    f,
-                    "AVL child-parent height mismatch: {children:?}, {parent}"
-                )
+                write!(f, "child-parent height mismatch: {children:?}, {parent}")
             }
         }
     }