diff --git a/roaring/src/bitmap/container.rs b/roaring/src/bitmap/container.rs
index b72965c5..4017eaab 100644
--- a/roaring/src/bitmap/container.rs
+++ b/roaring/src/bitmap/container.rs
@@ -42,6 +42,7 @@ impl Container {
         self.store.is_empty()
     }
 
+    #[inline]
     pub fn insert(&mut self, index: u16) -> bool {
         if self.store.insert(index) {
             self.ensure_correct_store();
diff --git a/roaring/src/bitmap/inherent.rs b/roaring/src/bitmap/inherent.rs
index 559b7579..b2919b4c 100644
--- a/roaring/src/bitmap/inherent.rs
+++ b/roaring/src/bitmap/inherent.rs
@@ -48,6 +48,7 @@ impl RoaringBitmap {
     /// assert_eq!(rb.insert(3), false);
     /// assert_eq!(rb.contains(3), true);
     /// ```
+    #[inline]
     pub fn insert(&mut self, value: u32) -> bool {
         let (key, index) = util::split(value);
         let container = match self.containers.binary_search_by_key(&key, |c| c.key) {
diff --git a/roaring/src/bitmap/store/array_store/mod.rs b/roaring/src/bitmap/store/array_store/mod.rs
index 883db31f..e252caba 100644
--- a/roaring/src/bitmap/store/array_store/mod.rs
+++ b/roaring/src/bitmap/store/array_store/mod.rs
@@ -47,6 +47,7 @@ impl ArrayStore {
         }
     }
 
+    #[inline]
     pub fn insert(&mut self, index: u16) -> bool {
         self.vec.binary_search(&index).map_err(|loc| self.vec.insert(loc, index)).is_err()
     }
diff --git a/roaring/src/bitmap/store/bitmap_store.rs b/roaring/src/bitmap/store/bitmap_store.rs
index 14a97cc7..7a181e3f 100644
--- a/roaring/src/bitmap/store/bitmap_store.rs
+++ b/roaring/src/bitmap/store/bitmap_store.rs
@@ -52,6 +52,7 @@ impl BitmapStore {
         }
     }
 
+    #[inline]
     pub fn insert(&mut self, index: u16) -> bool {
         let (key, bit) = (key(index), bit(index));
         let old_w = self.bits[key];
diff --git a/roaring/src/bitmap/store/mod.rs b/roaring/src/bitmap/store/mod.rs
index 71d981a2..bc46c532 100644
--- a/roaring/src/bitmap/store/mod.rs
+++ b/roaring/src/bitmap/store/mod.rs
@@ -50,6 +50,7 @@ impl Store {
         Store::Bitmap(BitmapStore::full())
     }
 
+    #[inline]
     pub fn insert(&mut self, index: u16) -> bool {
         match self {
             Array(vec) => vec.insert(index),