diff --git a/vyper/semantics/types/base.py b/vyper/semantics/types/base.py
index 128ede0d5bc..f7bf7d50e5f 100644
--- a/vyper/semantics/types/base.py
+++ b/vyper/semantics/types/base.py
@@ -159,7 +159,7 @@ def abi_type(self) -> ABIType:
         """
         The ABI type corresponding to this type
         """
-        raise CompilerPanic("Method must be implemented by the inherited class")
+        raise CompilerPanic(f"unimplemented method: `abi_type` (`{self}`)")
 
     def get_size_in(self, location: DataLocation):
         if location in (DataLocation.STORAGE, DataLocation.TRANSIENT):