diff --git a/vlib/v/ast/ast.v b/vlib/v/ast/ast.v
index 1c57e604f7..6189187216 100644
--- a/vlib/v/ast/ast.v
+++ b/vlib/v/ast/ast.v
@@ -388,6 +388,7 @@ pub struct CompIf {
 pub:
 	cond       Expr
 	stmts      []Stmt
+	pos        token.Position
 mut:
 	else_stmts []Stmt
 }
diff --git a/vlib/v/gen/cgen.v b/vlib/v/gen/cgen.v
index 241a5c670e..e9131187f0 100644
--- a/vlib/v/gen/cgen.v
+++ b/vlib/v/gen/cgen.v
@@ -259,10 +259,11 @@ fn (g mut Gen) stmt(node ast.Stmt) {
 			g.const_decl(it)
 		}
 		ast.CompIf {
-			// TODO
 			g.writeln('//#ifdef ')
 			// g.expr(it.cond)
+			// println('comp if stmts $g.file.path:$it.pos.line_nr')
 			// g.stmts(it.stmts)
+			// println('done')
 			g.writeln('//#endif')
 		}
 		ast.DeferStmt {
diff --git a/vlib/v/parser/comptime.v b/vlib/v/parser/comptime.v
index 517fe3d569..5b1ed3c71e 100644
--- a/vlib/v/parser/comptime.v
+++ b/vlib/v/parser/comptime.v
@@ -5,6 +5,7 @@ import (
 )
 
 pub fn (p mut Parser) comp_if() ast.CompIf {
+	pos := p.tok.position()
 	p.next()
 	p.check(.key_if)
 	if p.tok.kind == .not {
@@ -16,6 +17,7 @@ pub fn (p mut Parser) comp_if() ast.CompIf {
 	}
 	mut node := ast.CompIf{
 		stmts: p.parse_block()
+		pos: pos
 	}
 	if p.tok.kind == .dollar && p.peek_tok.kind == .key_else {
 		p.next()