diff --git a/glm/detail/type_mat2x4.hpp b/glm/detail/type_mat2x4.hpp
index 8e3c616a..b06ae7c6 100644
--- a/glm/detail/type_mat2x4.hpp
+++ b/glm/detail/type_mat2x4.hpp
@@ -192,7 +192,7 @@ namespace glm
 	GLM_FUNC_DECL tmat3x4<T, P> operator*(tmat2x4<T, P> const & m1, tmat3x2<T, P> const & m2);
 
 	template <typename T, precision P>
-	GLM_FUNC_DECL tmat2x4<T, P> operator/(tmat2x4<T, P> const & m, T s);
+	GLM_FUNC_DECL tmat2x4<T, P> operator/(tmat2x4<T, P> const & m, const T& s);
 
 	template <typename T, precision P>
 	GLM_FUNC_DECL tmat2x4<T, P> operator/(T s, tmat2x4<T, P> const & m);
diff --git a/glm/detail/type_mat2x4.inl b/glm/detail/type_mat2x4.inl
index 42299787..cac649f6 100644
--- a/glm/detail/type_mat2x4.inl
+++ b/glm/detail/type_mat2x4.inl
@@ -493,7 +493,7 @@ namespace glm
 	}
 
 	template <typename T, precision P> 
-	GLM_FUNC_QUALIFIER tmat2x4<T, P> operator/(tmat2x4<T, P> const & m, T s)
+	GLM_FUNC_QUALIFIER tmat2x4<T, P> operator/(tmat2x4<T, P> const & m, const T& s)
 	{
 		return tmat2x4<T, P>(
 			m[0] / s,
diff --git a/glm/detail/type_vec4.hpp b/glm/detail/type_vec4.hpp
index e9fe6c1d..e941b766 100644
--- a/glm/detail/type_vec4.hpp
+++ b/glm/detail/type_vec4.hpp
@@ -360,7 +360,7 @@ namespace detail
 	// -- Binary operators --
 
 	template <typename T, precision P>
-	GLM_FUNC_DECL tvec4<T, P> operator+(tvec4<T, P> const & v, T scalar);
+	GLM_FUNC_DECL tvec4<T, P> operator+(tvec4<T, P> const & v, const T& scalar);
 
 	template <typename T, precision P>
 	GLM_FUNC_DECL tvec4<T, P> operator+(tvec4<T, P> const & v, tvec1<T, P> const & scalar);
@@ -375,7 +375,7 @@ namespace detail
 	GLM_FUNC_DECL tvec4<T, P> operator+(tvec4<T, P> const & v1, tvec4<T, P> const & v2);
 
 	template <typename T, precision P>
-	GLM_FUNC_DECL tvec4<T, P> operator-(tvec4<T, P> const & v, T scalar);
+	GLM_FUNC_DECL tvec4<T, P> operator-(tvec4<T, P> const & v, const T& scalar);
 
 	template <typename T, precision P>
 	GLM_FUNC_DECL tvec4<T, P> operator-(tvec4<T, P> const & v, tvec1<T, P> const & scalar);
@@ -390,7 +390,7 @@ namespace detail
 	GLM_FUNC_DECL tvec4<T, P> operator-(tvec4<T, P> const & v1, tvec4<T, P> const & v2);
 
 	template <typename T, precision P>
-	GLM_FUNC_DECL tvec4<T, P> operator*(tvec4<T, P> const & v, T scalar);
+	GLM_FUNC_DECL tvec4<T, P> operator*(tvec4<T, P> const & v, const T& scalar);
 
 	template <typename T, precision P>
 	GLM_FUNC_DECL tvec4<T, P> operator*(tvec4<T, P> const & v, tvec1<T, P> const & scalar);
@@ -405,7 +405,7 @@ namespace detail
 	GLM_FUNC_DECL tvec4<T, P> operator*(tvec4<T, P> const & v1, tvec4<T, P> const & v2);
 
 	template <typename T, precision P>
-	GLM_FUNC_DECL tvec4<T, P> operator/(tvec4<T, P> const & v, T scalar);
+	GLM_FUNC_DECL tvec4<T, P> operator/(tvec4<T, P> const & v, const T& scalar);
 
 	template <typename T, precision P>
 	GLM_FUNC_DECL tvec4<T, P> operator/(tvec4<T, P> const & v, tvec1<T, P> const & scalar);
diff --git a/glm/detail/type_vec4.inl b/glm/detail/type_vec4.inl
index 8e215d00..5927d99e 100644
--- a/glm/detail/type_vec4.inl
+++ b/glm/detail/type_vec4.inl
@@ -664,7 +664,7 @@ namespace glm
 	// -- Binary arithmetic operators --
 
 	template <typename T, precision P>
-	GLM_FUNC_QUALIFIER tvec4<T, P> operator+(tvec4<T, P> const & v, T scalar)
+	GLM_FUNC_QUALIFIER tvec4<T, P> operator+(tvec4<T, P> const & v, const T& scalar)
 	{
 		return tvec4<T, P>(
 			v.x + scalar,
@@ -694,7 +694,7 @@ namespace glm
 	}
 
 	template <typename T, precision P>
-	GLM_FUNC_QUALIFIER tvec4<T, P> operator-(tvec4<T, P> const & v, T scalar)
+	GLM_FUNC_QUALIFIER tvec4<T, P> operator-(tvec4<T, P> const & v, const T& scalar)
 	{
 		return tvec4<T, P>(
 			v.x - scalar,
@@ -724,7 +724,7 @@ namespace glm
 	}
 
 	template <typename T, precision P>
-	GLM_FUNC_QUALIFIER tvec4<T, P> operator*(tvec4<T, P> const & v, T scalar)
+	GLM_FUNC_QUALIFIER tvec4<T, P> operator*(tvec4<T, P> const & v, const T& scalar)
 	{
 		return tvec4<T, P>(
 			v.x * scalar,
@@ -754,7 +754,7 @@ namespace glm
 	}
 
 	template <typename T, precision P>
-	GLM_FUNC_QUALIFIER tvec4<T, P> operator/(tvec4<T, P> const & v, T scalar)
+	GLM_FUNC_QUALIFIER tvec4<T, P> operator/(tvec4<T, P> const & v, const T& scalar)
 	{
 		return tvec4<T, P>(
 			v.x / scalar,