Index: src/AST/Pass.impl.hpp
===================================================================
--- src/AST/Pass.impl.hpp	(revision 0dd9a5eb90cd65276b32272b8ae6f6266463e91b)
+++ src/AST/Pass.impl.hpp	(revision e00c22feb84a430a60c57638aabf2d3f11f8c449)
@@ -423,5 +423,5 @@
 		}
 		catch( SemanticErrorException &e ) {
-			if (__pass::onError (visitor.core, *i, 0))
+			if (__pass::on_error (visitor.core, *i, 0))
 				errors.append( e );
 		}
Index: src/AST/Pass.proto.hpp
===================================================================
--- src/AST/Pass.proto.hpp	(revision 0dd9a5eb90cd65276b32272b8ae6f6266463e91b)
+++ src/AST/Pass.proto.hpp	(revision e00c22feb84a430a60c57638aabf2d3f11f8c449)
@@ -270,9 +270,9 @@
 
 	template< typename core_t >
-	static bool onError (core_t &, ptr<Decl> &, long) { return true; }
-
-	template< typename core_t >
-	static auto onError (core_t & core, ptr<Decl> & decl, int) -> decltype(core.onError(decl)) {
-		return core.onError(decl); 
+	static bool on_error (core_t &, ptr<Decl> &, long) { return true; }
+
+	template< typename core_t >
+	static auto on_error (core_t & core, ptr<Decl> & decl, int) -> decltype(core.on_error(decl)) {
+		return core.on_error(decl); 
 	}