diff --git a/Base/include/VectorBase.h b/Base/include/VectorBase.h
index 46bc194..c3df4b4 100644
--- a/Base/include/VectorBase.h
+++ b/Base/include/VectorBase.h
@@ -110,7 +110,7 @@ namespace FasTC {
                                              const VectorTypeTwo &v2) {
     VectorTypeOne a(v1);
     for(int i = 0; i < VectorTypeOne::Size; i++) {
-      a(i) += v2(i);
+      a(i) += v2[i];
     }
     return a;
   }
@@ -132,7 +132,7 @@ namespace FasTC {
                                                 const VectorTypeTwo &v2) {
     VectorTypeOne a(v1);
     for(int i = 0; i < VectorTypeOne::Size; i++) {
-      a(i) -= v2(i);
+      a(i) -= v2[i];
     }
     return a;
   }
diff --git a/Base/test/TestVector.cpp b/Base/test/TestVector.cpp
index f2f2f53..7735fdc 100644
--- a/Base/test/TestVector.cpp
+++ b/Base/test/TestVector.cpp
@@ -216,6 +216,10 @@ TEST(VectorBase, Addition) {
   EXPECT_EQ(au[0], 6);
   EXPECT_EQ(au[1], 5);
 
+  au = v2u + fv + uv;
+  EXPECT_EQ(au[0], 11);
+  EXPECT_EQ(au[1], 7);
+
   FasTC::VectorBase<float, 2> af = v2f + v2u;
   EXPECT_NEAR(af[0], 6.1f, kEpsilon);
   EXPECT_NEAR(af[1], 5.2f, kEpsilon);