diff --git a/src/solve/SimulationParameters.h b/src/solve/SimulationParameters.h
index a313df09..01422e4e 100644
--- a/src/solve/SimulationParameters.h
+++ b/src/solve/SimulationParameters.h
@@ -50,9 +50,9 @@
 struct SimulationParameters {
   // Negative value indicates this has not
   // been read from config file yet.
-  double sim_time_step_size{0.0};  ///< Simulation time step size
+  double sim_time_step_size{0.0}:  ///< Simulation time step size
   double sim_abs_tol{0.0};         ///< Absolute tolerance for simulation
-  double sim_cardiac_period{0.0}; ///< Cardiac period
+  double sim_cardiac_period{0.0};  ///< Cardiac period
 
   int sim_num_cycles{0};     ///< Number of cardiac cycles to simulate
   int sim_pts_per_cycle{0};  ///< Number of time steps per cardiac cycle