diff --git a/src/ipa/libipa/vector.cpp b/src/ipa/libipa/vector.cpp
index f14f155216f3..d414ba97e41e 100644
--- a/src/ipa/libipa/vector.cpp
+++ b/src/ipa/libipa/vector.cpp
@@ -29,7 +29,13 @@ namespace ipa {
 
 /**
  * \fn Vector::Vector()
- * \brief Construct a zero vector
+ * \brief Construct an uninitialized vector
+ */
+
+/**
+ * \fn Vector::Vector(T scalar)
+ * \brief Construct a vector filled with a \a scalar value
+ * \param[in] scalar The scalar value
  */
 
 /**
diff --git a/src/ipa/libipa/vector.h b/src/ipa/libipa/vector.h
index b72ab9851aa3..be568eadfeac 100644
--- a/src/ipa/libipa/vector.h
+++ b/src/ipa/libipa/vector.h
@@ -35,6 +35,11 @@ class Vector
 public:
 	constexpr Vector() = default;
 
+	constexpr Vector(T scalar)
+	{
+		data_.fill(scalar);
+	}
+
 	constexpr Vector(const std::array<T, Rows> &data)
 	{
 		for (unsigned int i = 0; i < Rows; i++)