diff --git a/src/ir/builder.rs b/src/ir/builder.rs
index efa287a..96b937b 100644
--- a/src/ir/builder.rs
+++ b/src/ir/builder.rs
@@ -230,7 +230,7 @@ pub trait LocalValueBuilder: QueryDfgData + AddValue + ConstantBuilder {
         self.add_value(Load::new_value_data(ty, ptr))
     }
 
-    /// Build a cast instruction
+    /// Build a cast instruction.
     fn cast(&mut self, op: CastOp, ty: Type, val: Value) -> Result<Value, BuilderErr> {
         self.add_value(Cast::new_value_data(op, ty, val))
     }
diff --git a/src/ir/entities.rs b/src/ir/entities.rs
index c0c446c..3819d4b 100644
--- a/src/ir/entities.rs
+++ b/src/ir/entities.rs
@@ -40,9 +40,9 @@ pub enum FunctionKind {
 
 /// Data of function.
 pub struct FunctionData {
-    /// Name of the function.
+    /// Name of the function
     name: String,
-    /// Type of the function.
+    /// Type of the function
     ty: Type,
     /// The kind of the function
     kind: FunctionKind,
@@ -176,7 +176,7 @@ pub enum ValueKind {
 
     /// Function
     ///
-    /// Functions are also global values. The data and instructions are stored in `FunctionData`
+    /// Functions are also global values. The data and instructions are stored in `FunctionData`.
     Function,
 }