diff --git a/test/product_notemporary.cpp b/test/product_notemporary.cpp
index bb213368e..79720145e 100644
--- a/test/product_notemporary.cpp
+++ b/test/product_notemporary.cpp
@@ -110,11 +110,11 @@ template<typename MatrixType> void product_notemporary(const MatrixType& m)
   VERIFY_EVALUATION_COUNT( m3.noalias() = m1.block(r0,r0,r1,r1).template triangularView<UnitUpper>()  * m2.block(r0,c0,r1,c1), 1);
 
   // Zero temporaries for lazy products ...
-  VERIFY_EVALUATION_COUNT( Scalar tmp = Scalar(RealScalar(1)) /  (m3.transpose().lazyProduct(m3)).diagonal().sum(), 0 );
+  VERIFY_EVALUATION_COUNT( Scalar tmp = 0; tmp += Scalar(RealScalar(1)) /  (m3.transpose().lazyProduct(m3)).diagonal().sum(), 0 );
 
   // ... and one temporary for even deeply (>=2) nested products 
-  VERIFY_EVALUATION_COUNT( Scalar tmp = Scalar(RealScalar(1)) /  (m3.transpose() * m3).diagonal().sum(), 1 );
-  VERIFY_EVALUATION_COUNT( Scalar tmp = Scalar(RealScalar(1)) /  (m3.transpose() * m3).diagonal().array().abs().sum(), 1 );
+  VERIFY_EVALUATION_COUNT( Scalar tmp = 0; tmp += Scalar(RealScalar(1)) /  (m3.transpose() * m3).diagonal().sum(), 1 );
+  VERIFY_EVALUATION_COUNT( Scalar tmp = 0; tmp += Scalar(RealScalar(1)) /  (m3.transpose() * m3).diagonal().array().abs().sum(), 1 );
 
   // Zero temporaries for ... CoeffBasedProductMode
   // - does not work with GCC because of the <..>, we'ld need variadic macros ...