diff --git a/glm/gtx/log_base.hpp b/glm/gtx/log_base.hpp
index 7662ed04..ce9fabe7 100644
--- a/glm/gtx/log_base.hpp
+++ b/glm/gtx/log_base.hpp
@@ -51,10 +51,17 @@ namespace glm
 
 	//! Logarithm for any base.
 	//! From GLM_GTX_log_base.
-	template <typename genType> 
+	template <typename genType>
 	GLM_FUNC_DECL genType log(
-		genType const & x, 
-		genType const & base);
+		genType x,
+		genType base);
+
+	//! Logarithm for any base.
+	//! From GLM_GTX_log_base.
+	template <typename T, precision P, template <typename, precision> class vecType>
+	GLM_FUNC_DECL vecType<T, P> sign(
+		vecType<T, P> const & x,
+		vecType<T, P> const & base);
 
 	/// @}
 }//namespace glm
diff --git a/glm/gtx/log_base.inl b/glm/gtx/log_base.inl
index 293a8fca..d0b0e6a9 100644
--- a/glm/gtx/log_base.inl
+++ b/glm/gtx/log_base.inl
@@ -10,15 +10,15 @@
 namespace glm
 {
 	template <typename genType> 
-	GLM_FUNC_QUALIFIER genType log(
-		genType const & x, 
-		genType const & base)
+	GLM_FUNC_QUALIFIER genType log(genType const & x, genType const & base)
 	{
 		assert(x != genType(0));
-
 		return glm::log(x) / glm::log(base);
 	}
 
-	VECTORIZE_VEC_SCA(log)
-	VECTORIZE_VEC_VEC(log)
+	template <typename T, precision P, template <typename, precision> class vecType>
+	GLM_FUNC_QUALIFIER vecType<T, P> log(vecType<T, P> const & x, vecType<T, P> const & base)
+	{
+		return glm::log(x) / glm::log(base);
+	}
 }//namespace glm