diff --git a/lib/SurrogatesSVM/src/SurrogatesSVM.jl b/lib/SurrogatesSVM/src/SurrogatesSVM.jl
index d69b365e..a8320c8a 100644
--- a/lib/SurrogatesSVM/src/SurrogatesSVM.jl
+++ b/lib/SurrogatesSVM/src/SurrogatesSVM.jl
@@ -40,6 +40,10 @@ function SVMSurrogate(x, y, lb, ub)
     SVMSurrogate(x, y, model, lb, ub)
 end
 
+function (svmsurr::SVMSurrogate)(val::Number)
+    return svmsurr([val])
+end
+
 function (svmsurr::SVMSurrogate)(val)
     n = length(val)
     return LIBSVM.predict(svmsurr.model, reshape(val, 1, n))[1]
@@ -54,7 +58,7 @@ end
   - `x_new`: Vector of new data points to be added to the training set of SVMSurrogate.
   - `y_new`: Vector of new output points to be added to the training set of SVMSurrogate.
 """
-function update!(svmsurr::SVMSurrogate, x_new, y_new)
+function SurrogatesBase.update!(svmsurr::SVMSurrogate, x_new, y_new)
     svmsurr.x = vcat(svmsurr.x, x_new)
     svmsurr.y = vcat(svmsurr.y, y_new)
     if length(svmsurr.lb) == 1
diff --git a/lib/SurrogatesSVM/test/runtests.jl b/lib/SurrogatesSVM/test/runtests.jl
index a15f1027..00240227 100644
--- a/lib/SurrogatesSVM/test/runtests.jl
+++ b/lib/SurrogatesSVM/test/runtests.jl
@@ -18,7 +18,7 @@ using SafeTestsets
         update!(my_svm_1D, [3.1], [7.2])
         update!(my_svm_1D, [3.2, 3.5], [7.4, 8.0])
         svm = LIBSVM.fit!(SVC(), reshape(my_svm_1D.x, length(my_svm_1D.x), 1), my_svm_1D.y)
-        val = my_svm_1D([3.1])
+        val = my_svm_1D(3.1)
         @test LIBSVM.predict(svm, [3.1;;])[1] == val
     end
     @testset "ND" begin