diff --git a/tests/samples/accessibility_dec.blp b/tests/samples/accessibility_dec.blp
index eedb6cd..4a370cb 100644
--- a/tests/samples/accessibility_dec.blp
+++ b/tests/samples/accessibility_dec.blp
@@ -8,5 +8,4 @@ Box {
   }
 }
 
-Label my_label {
-}
+Label my_label {}
diff --git a/tests/samples/child_type.blp b/tests/samples/child_type.blp
index 4e12098..a6a76d5 100644
--- a/tests/samples/child_type.blp
+++ b/tests/samples/child_type.blp
@@ -2,12 +2,10 @@ using Gtk 4.0;
 
 Window {
   [titlebar]
-  HeaderBar {
-  }
+  HeaderBar {}
 }
 
 Dialog {
   [internal-child content_area]
-  Box {
-  }
+  Box {}
 }
diff --git a/tests/samples/id_prop.blp b/tests/samples/id_prop.blp
index 07b19a3..8200868 100644
--- a/tests/samples/id_prop.blp
+++ b/tests/samples/id_prop.blp
@@ -4,5 +4,4 @@ Scale {
   adjustment: adj;
 }
 
-Adjustment adj {
-}
+Adjustment adj {}
diff --git a/tests/samples/placeholder_dec.blp b/tests/samples/placeholder_dec.blp
index 46afd23..ddde6e3 100644
--- a/tests/samples/placeholder_dec.blp
+++ b/tests/samples/placeholder_dec.blp
@@ -1,4 +1,3 @@
 using Gtk 4.0;
 
-Box {
-}
+Box {}
diff --git a/tests/samples/template.blp b/tests/samples/template.blp
index fb019d3..aba76c1 100644
--- a/tests/samples/template.blp
+++ b/tests/samples/template.blp
@@ -1,6 +1,6 @@
 using Gtk 4.0;
 
-template $TestTemplate : ApplicationWindow {
+template $TestTemplate: ApplicationWindow {
   test-property: 'Hello, world';
   test-signal => $on_test_signal();
 }
diff --git a/tests/samples/using.blp b/tests/samples/using.blp
index 87d62d1..8b11013 100644
--- a/tests/samples/using.blp
+++ b/tests/samples/using.blp
@@ -1,5 +1,4 @@
 using Gtk 4.0;
 using GObject 2.0;
 
-GObject.Object {
-}
+GObject.Object {}