diff --git a/app/src/main/java/info/nightscout/androidaps/plugins/constraints/safety/SafetyPlugin.kt b/app/src/main/java/info/nightscout/androidaps/plugins/constraints/safety/SafetyPlugin.kt
index cff84db028..bb1dcae6ed 100644
--- a/app/src/main/java/info/nightscout/androidaps/plugins/constraints/safety/SafetyPlugin.kt
+++ b/app/src/main/java/info/nightscout/androidaps/plugins/constraints/safety/SafetyPlugin.kt
@@ -9,6 +9,7 @@ import info.nightscout.androidaps.interfaces.*
 import info.nightscout.shared.logging.AAPSLogger
 import info.nightscout.androidaps.plugins.aps.openAPSAMA.OpenAPSAMAPlugin
 import info.nightscout.androidaps.plugins.aps.openAPSSMB.OpenAPSSMBPlugin
+import info.nightscout.androidaps.plugins.aps.openAPSSMBDynamicISF.OpenAPSSMBDynamicISFPlugin
 import info.nightscout.androidaps.plugins.bus.RxBus
 import info.nightscout.androidaps.plugins.configBuilder.ConstraintChecker
 import info.nightscout.androidaps.plugins.general.overview.events.EventNewNotification
@@ -36,6 +37,7 @@ class SafetyPlugin @Inject constructor(
     private val constraintChecker: ConstraintChecker,
     private val openAPSAMAPlugin: OpenAPSAMAPlugin,
     private val openAPSSMBPlugin: OpenAPSSMBPlugin,
+    private val OpenAPSSMBDynamicISFPlugin: OpenAPSSMBDynamicISFPlugin,
     private val sensitivityOref1Plugin: SensitivityOref1Plugin,
     private val activePlugin: ActivePlugin,
     private val hardLimits: HardLimits,
@@ -188,10 +190,12 @@ class SafetyPlugin @Inject constructor(
 
     override fun applyMaxIOBConstraints(maxIob: Constraint<Double>): Constraint<Double> {
         val apsMode = sp.getString(R.string.key_aps_mode, "open")
-        val maxIobPref: Double = if (openAPSSMBPlugin.isEnabled()) sp.getDouble(R.string.key_openapssmb_max_iob, 3.0) else sp.getDouble(R.string.key_openapsma_max_iob, 1.5)
+        val maxIobPref: Double = if (openAPSSMBPlugin.isEnabled() || OpenAPSSMBDynamicISFPlugin.isEnabled()) sp.getDouble(R.string.key_openapssmb_max_iob, 3.0) else sp.getDouble(R.string
+        .key_openapsma_max_iob, 1.5)
         maxIob.setIfSmaller(aapsLogger, maxIobPref, String.format(rh.gs(R.string.limitingiob), maxIobPref, rh.gs(R.string.maxvalueinpreferences)), this)
         if (openAPSAMAPlugin.isEnabled()) maxIob.setIfSmaller(aapsLogger, hardLimits.maxIobAMA(), String.format(rh.gs(R.string.limitingiob), hardLimits.maxIobAMA(), rh.gs(R.string.hardlimit)), this)
         if (openAPSSMBPlugin.isEnabled()) maxIob.setIfSmaller(aapsLogger, hardLimits.maxIobSMB(), String.format(rh.gs(R.string.limitingiob), hardLimits.maxIobSMB(), rh.gs(R.string.hardlimit)), this)
+        if (OpenAPSSMBDynamicISFPlugin.isEnabled()) maxIob.setIfSmaller(aapsLogger, hardLimits.maxIobSMB(), String.format(rh.gs(R.string.limitingiob), hardLimits.maxIobSMB(), rh.gs(R.string.hardlimit)), this)
         if (apsMode == "lgs") maxIob.setIfSmaller(aapsLogger, HardLimits.MAX_IOB_LGS, String.format(rh.gs(R.string.limitingiob), HardLimits.MAX_IOB_LGS, rh.gs(R.string.lowglucosesuspend)), this)
         return maxIob
     }
@@ -207,4 +211,4 @@ class SafetyPlugin @Inject constructor(
         configuration.storeDouble(R.string.key_treatmentssafety_maxbolus, sp, rh)
         configuration.storeInt(R.string.key_treatmentssafety_maxcarbs, sp, rh)
     }
-}
\ No newline at end of file
+}