diff --git a/src/expr.rs b/src/expr.rs
index 31953380a73..9c4f48bbb7e 100644
--- a/src/expr.rs
+++ b/src/expr.rs
@@ -2106,7 +2106,7 @@ fn count_line_breaks(src: &str) -> usize {
             // Expression did not fit on the same line as the identifier or is
             // at least three lines big. Try splitting the line and see
             // if that works better.
-            let new_shape = try_opt!(shape.block_left(context.config.tab_spaces));
+            let new_shape = try_opt!(shape.block_left(context.config.tab_spaces()));
             let new_rhs = ex.rewrite(context, new_shape);
 
             // FIXME: DRY!
diff --git a/tests/source/macros.rs b/tests/source/macros.rs
index afaf67359ed..b83f74c47d5 100644
--- a/tests/source/macros.rs
+++ b/tests/source/macros.rs
@@ -41,6 +41,12 @@ fn main() {
     vec![a, b; c];
     vec![a; b, c];
 
+    vec![a; (|x| { let y = x + 1; let z = y + 1; z })(2)];
+    vec![a; xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx];
+    vec![a; unsafe {
+        x + 1
+    }];
+
     unknown_bracket_macro__comma_should_not_be_stripped![
     a,
     ];
diff --git a/tests/target/macros.rs b/tests/target/macros.rs
index 2f65b4e4f6e..c19bb242ca3 100644
--- a/tests/target/macros.rs
+++ b/tests/target/macros.rs
@@ -45,6 +45,16 @@ fn main() {
     vec![a, b; c];
     vec![a; b, c];
 
+    vec![a;
+         (|x| {
+              let y = x + 1;
+              let z = y + 1;
+              z
+          })(2)];
+    vec![a;
+         xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx];
+    vec![a; unsafe { x + 1 }];
+
     unknown_bracket_macro__comma_should_not_be_stripped![
     a,
     ];