2 files changed, 11 insertions, 18 deletions
diff --git a/askama_shared/src/generator.rs b/askama_shared/src/generator.rs
index fb8619e..d904524 100644
--- a/askama_shared/src/generator.rs
+++ b/askama_shared/src/generator.rs
@@ -1030,7 +1030,10 @@ impl<'a, S: std::hash::BuildHasher> Generator<'a, S> {
             }
 
             let scoped = match *arg {
-                Expr::Filter(_, _) | Expr::MethodCall(_, _, _) => true,
+                Expr::Filter(_, _)
+                | Expr::MethodCall(_, _, _)
+                | Expr::VarCall(_, _)
+                | Expr::PathCall(_, _) => true,
                 _ => false,
             };
 
@@ -1169,13 +1172,8 @@ impl<'a, S: std::hash::BuildHasher> Generator<'a, S> {
             }
             buf.write(part);
         }
-        buf.write("(");
-        for (i, arg) in args.iter().enumerate() {
-            if i > 0 {
-                buf.write(",");
-            }
-            self.visit_expr(buf, arg);
-        }
+        buf.write("(&");
+        self._visit_args(buf, args);
         buf.write(")");
         DisplayWrap::Unwrapped
     }
@@ -1198,13 +1196,8 @@ impl<'a, S: std::hash::BuildHasher> Generator<'a, S> {
             buf.write("self.");
             buf.write(s);
         }
-        buf.write(")(");
-        for (i, arg) in args.iter().enumerate() {
-            if i > 0 {
-                buf.write(",");
-            }
-            self.visit_expr(buf, arg);
-        }
+        buf.write(")(&");
+        self._visit_args(buf, args);
         buf.write(")");
         DisplayWrap::Unwrapped
     }
diff --git a/testing/tests/simple.rs b/testing/tests/simple.rs
index 3e156b4..7dcacba 100644
--- a/testing/tests/simple.rs
+++ b/testing/tests/simple.rs
@@ -265,7 +265,7 @@ fn test_slice_literal() {
 #[derive(Template)]
 #[template(source = "Hello, {{ world(\"123\", 4) }}!", ext = "txt")]
 struct FunctionRefTemplate {
-    world: fn(s: &str, v: u8) -> String,
+    world: fn(s: &str, v: &u8) -> String,
 }
 
 #[test]
@@ -276,7 +276,7 @@ fn test_func_ref_call() {
     assert_eq!(t.render().unwrap(), "Hello, world(123, 4)!");
 }
 
-fn world2(s: &str, v: u8) -> String {
+fn world2(s: &str, v: &u8) -> String {
     format!("world{}{}", v, s)
 }
 
@@ -294,7 +294,7 @@ fn test_path_func_call() {
 struct FunctionTemplate;
 
 impl FunctionTemplate {
-    fn world3(&self, s: &str, v: u8) -> String {
+    fn world3(&self, s: &str, v: &u8) -> String {
         format!("world{}{}", s, v)
     }
 }