diff --git a/jbmc/src/java_bytecode/java_types.cpp b/jbmc/src/java_bytecode/java_types.cpp
index 220e98db04d..f8d13d84c06 100644
--- a/jbmc/src/java_bytecode/java_types.cpp
+++ b/jbmc/src/java_bytecode/java_types.cpp
@@ -210,7 +210,8 @@ typet java_type_from_char(char t)
   case 'd': return java_double_type();
   case 'z': return java_boolean_type();
   case 'a': return java_reference_type(void_typet());
-  default: UNREACHABLE; return nil_typet();
+  default:
+    UNREACHABLE;
   }
 }