diff --git a/Eigen/src/SparseCore/SparseBlock.h b/Eigen/src/SparseCore/SparseBlock.h
index 6f615e250..5b95cc33f 100644
--- a/Eigen/src/SparseCore/SparseBlock.h
+++ b/Eigen/src/SparseCore/SparseBlock.h
@@ -338,7 +338,10 @@ const Block<const Derived,Dynamic,Dynamic,true> SparseMatrixBase<Derived>::inner
 namespace internal {
   
 template< typename XprType, int BlockRows, int BlockCols, bool InnerPanel,
-          bool OuterVector =  (BlockCols==1 && XprType::IsRowMajor) || (BlockRows==1 && !XprType::IsRowMajor)>
+          bool OuterVector =  (BlockCols==1 && XprType::IsRowMajor)
+                               | // FIXME | instead of || to please GCC 4.4.0 stupid warning "suggest parentheses around &&".
+                                 // revert to || as soon as not needed anymore. 
+                              (BlockRows==1 && !XprType::IsRowMajor)>
 class GenericSparseBlockInnerIteratorImpl;
 
 }