diff --git a/src/console/mod.rs b/src/console/mod.rs
index 4c684b6..4a054e1 100644
--- a/src/console/mod.rs
+++ b/src/console/mod.rs
@@ -203,6 +203,7 @@ impl Vars {
     }
 }
 
+#[derive(Default)]
 pub struct Console {
     history: Vec<Component>,
     dirty: bool,
diff --git a/src/ecs/mod.rs b/src/ecs/mod.rs
index 719bf8d..c2ab443 100644
--- a/src/ecs/mod.rs
+++ b/src/ecs/mod.rs
@@ -53,6 +53,12 @@ pub struct Filter {
     bits: BSet,
 }
 
+impl Default for Filter {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Filter {
     /// Creates an empty filter which matches everything
     pub fn new() -> Filter {
@@ -106,6 +112,7 @@ struct EntityState {
 }
 
 /// Stores and manages a collection of entities.
+#[derive(Default)]
 pub struct Manager {
     num_components: usize,
     entities: Vec<(Option<EntityState>, u32)>,
diff --git a/src/gl/mod.rs b/src/gl/mod.rs
index 9a100fb..a782d78 100644
--- a/src/gl/mod.rs
+++ b/src/gl/mod.rs
@@ -264,6 +264,7 @@ pub const NEAREST_MIPMAP_LINEAR: TextureValue = gl::NEAREST_MIPMAP_LINEAR as Tex
 pub const CLAMP_TO_EDGE: TextureValue = gl::CLAMP_TO_EDGE as TextureValue;
 
 /// `Texture` is a buffer of data used by fragment shaders.
+#[derive(Default)]
 pub struct Texture(u32);
 
 impl Texture {
@@ -510,6 +511,7 @@ pub type ShaderParameter = u32;
 pub const COMPILE_STATUS: ShaderParameter = gl::COMPILE_STATUS;
 pub const INFO_LOG_LENGTH: ShaderParameter = gl::INFO_LOG_LENGTH;
 
+#[derive(Default)]
 pub struct Program(u32);
 
 impl Program {
@@ -712,6 +714,7 @@ impl Attribute {
 // VertexArray is used to store state needed to render vertices.
 // This includes buffers, the format of the buffers and enabled
 // attributes.
+#[derive(Default)]
 pub struct VertexArray(u32);
 
 impl VertexArray {
@@ -772,6 +775,7 @@ pub const READ_ONLY: Access = gl::READ_ONLY;
 pub const WRITE_ONLY: Access = gl::WRITE_ONLY;
 
 /// `Buffer` is a storage for vertex data.
+#[derive(Default)]
 pub struct Buffer(u32);
 
 impl Buffer {
@@ -871,6 +875,7 @@ pub const COLOR_ATTACHMENT_1: Attachment = gl::COLOR_ATTACHMENT1;
 pub const COLOR_ATTACHMENT_2: Attachment = gl::COLOR_ATTACHMENT2;
 pub const DEPTH_ATTACHMENT: Attachment = gl::DEPTH_ATTACHMENT;
 
+#[derive(Default)]
 pub struct Framebuffer(u32);
 
 pub fn check_framebuffer_status() {
diff --git a/src/server/target.rs b/src/server/target.rs
index fbb1ed4..c8c1ba4 100644
--- a/src/server/target.rs
+++ b/src/server/target.rs
@@ -11,6 +11,12 @@ pub struct Info {
     last_pos: Position,
 }
 
+impl Default for Info {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Info {
     pub fn new() -> Info {
         Info {
diff --git a/src/ui/mod.rs b/src/ui/mod.rs
index fa63aaf..0091a62 100644
--- a/src/ui/mod.rs
+++ b/src/ui/mod.rs
@@ -282,6 +282,12 @@ pub struct Container {
     last_height: f64,
 }
 
+impl Default for Container {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Container {
     pub fn new() -> Container {
         Container {
@@ -677,6 +683,7 @@ macro_rules! element {
             }
         }
 
+        #[derive(Default)]
         pub struct $builder {
             $(
                 $sname: Option<$sty>,