diff --git a/vlib/v/gen/cgen.v b/vlib/v/gen/cgen.v
index 774664db5c..64ccda9a37 100644
--- a/vlib/v/gen/cgen.v
+++ b/vlib/v/gen/cgen.v
@@ -1301,7 +1301,8 @@ fn (mut g Gen) gen_cross_tmp_variable(left []ast.Expr, val ast.Expr) {
 				if lx is ast.Ident {
 					ident := lx as ast.Ident
 					if val.name == ident.name {
-						g.write('_var_$ident.pos.pos')
+						g.write('_var_')
+						g.write(ident.pos.pos.str())
 						has_var = true
 						break
 					}
@@ -1342,7 +1343,8 @@ fn (mut g Gen) gen_cross_tmp_variable(left []ast.Expr, val ast.Expr) {
 			mut has_var := false
 			for lx in left {
 				if val_.str() == lx.str() {
-					g.write('_var_${lx.position()}.pos')
+					g.write('_var_')
+					g.write(lx.position().pos.str())
 					has_var = true
 					break
 				}