diff --git a/nosnoc/nosnoc_opts.py b/nosnoc/nosnoc_opts.py
index edb1d43..bf4dda0 100644
--- a/nosnoc/nosnoc_opts.py
+++ b/nosnoc/nosnoc_opts.py
@@ -44,14 +44,6 @@ class NosnocOpts:
     # used in InitializationStrategy.RK4_smoothed
     fix_active_set_fe0: bool = False
 
-    # initialization - Stewart
-    # init_theta: Optional[float] = None
-    # init_lambda: Optional[float] = None
-    init_mu: float = 1.0
-    # initialization - Step
-    init_alpha: float = 0.5  # for step only
-    init_beta: float = 1.0
-
     N_finite_elements: int = 2  #
     Nfe_list: list = field(default_factory=list)  #: list of length N_stages, Nfe per stage
 
diff --git a/nosnoc/problem.py b/nosnoc/problem.py
index 2633099..b752939 100644
--- a/nosnoc/problem.py
+++ b/nosnoc/problem.py
@@ -305,7 +305,7 @@ def __init__(self,
                 for ij in range(dims.n_sys):
                     self.add_variable(ca.SX.sym(f'mu_{ctrl_idx}_{fe_idx}_{ii+1}_{ij+1}', 1),
                                       self.ind_mu, -np.inf * np.ones(1), np.inf * np.ones(1),
-                                      opts.init_mu * np.ones(1), ii, ij)
+                                      np.ones(1), ii, ij)
             elif opts.pss_mode == PssMode.STEP:
                 # add alpha
                 for ij in range(dims.n_sys):
@@ -349,7 +349,7 @@ def __init__(self,
                 for ij in range(dims.n_sys):
                     self.add_variable(ca.SX.sym(f'mu_{ctrl_idx}_{fe_idx}_end_{ij+1}', 1),
                                       self.ind_mu, -np.inf * np.ones(1), np.inf * np.ones(1),
-                                      opts.init_mu * np.ones(1), opts.n_s, ij)
+                                      np.ones(1), opts.n_s, ij)
             elif opts.pss_mode == PssMode.STEP:
                 # add lambda_n
                 for ij in range(dims.n_sys):