diff --git a/gtsam/linear/IterativeOptimizationParameters.h b/gtsam/linear/IterativeOptimizationParameters.h
index b4599ecfd..459f07b3e 100644
--- a/gtsam/linear/IterativeOptimizationParameters.h
+++ b/gtsam/linear/IterativeOptimizationParameters.h
@@ -23,7 +23,9 @@
 
 namespace gtsam {
 
-/* parameters for the conjugate gradient method */
+/**
+ * parameters for the conjugate gradient method
+ */
 struct ConjugateGradientParameters {
 
   size_t minIterations_;  ///< minimum number of cg iterations
@@ -78,7 +80,9 @@ struct ConjugateGradientParameters {
   }
 };
 
-/* parameters for iterative linear solvers */
+/**
+ * parameters for iterative linear solvers
+ */
 class IterativeOptimizationParameters {
 
 public: