diff --git a/src/time_integration/methods_2N.jl b/src/time_integration/methods_2N.jl
index d2f22679c4f..f3b09b01e97 100644
--- a/src/time_integration/methods_2N.jl
+++ b/src/time_integration/methods_2N.jl
@@ -204,6 +204,11 @@ function set_proposed_dt!(integrator::SimpleIntegrator2N, dt)
     integrator.dt = dt
 end
 
+# Required e.g. for `glm_speed_callback` 
+function get_proposed_dt(integrator::SimpleIntegrator2N)
+    return integrator.dt
+end
+
 # stop the time integration
 function terminate!(integrator::SimpleIntegrator2N)
     integrator.finalstep = true
diff --git a/src/time_integration/methods_3Sstar.jl b/src/time_integration/methods_3Sstar.jl
index b0ce5930514..7b70466606c 100644
--- a/src/time_integration/methods_3Sstar.jl
+++ b/src/time_integration/methods_3Sstar.jl
@@ -282,6 +282,11 @@ function set_proposed_dt!(integrator::SimpleIntegrator3Sstar, dt)
     integrator.dt = dt
 end
 
+# Required e.g. for `glm_speed_callback` 
+function get_proposed_dt(integrator::SimpleIntegrator3Sstar)
+    return integrator.dt
+end
+
 # stop the time integration
 function terminate!(integrator::SimpleIntegrator3Sstar)
     integrator.finalstep = true