diff --git a/src/reader/spirv/function.h b/src/reader/spirv/function.h
index d9d8384..4e316f4 100644
--- a/src/reader/spirv/function.h
+++ b/src/reader/spirv/function.h
@@ -851,9 +851,11 @@
   /// @returns the value itself, or converted to signed integral
   TypedExpression ToSignedIfUnsigned(TypedExpression value);
 
-  /// Returns true if the given SPIR-V id represents a constant float 0.
+  /// @param value_id the value identifier to check
+  /// @returns true if the given SPIR-V id represents a constant float 0.
   bool IsFloatZero(uint32_t value_id);
-  /// Returns true if the given SPIR-V id represents a constant float 1.
+  /// @param value_id the value identifier to check
+  /// @returns true if the given SPIR-V id represents a constant float 1.
   bool IsFloatOne(uint32_t value_id);
 
  private: