diff --git a/lib/icinga/checkable-dependency.cpp b/lib/icinga/checkable-dependency.cpp
index a302f3aec..f8a84a56b 100644
--- a/lib/icinga/checkable-dependency.cpp
+++ b/lib/icinga/checkable-dependency.cpp
@@ -51,7 +51,7 @@ std::vector<Dependency::Ptr> Checkable::GetReverseDependencies() const
 	return std::vector<Dependency::Ptr>(m_ReverseDependencies.begin(), m_ReverseDependencies.end());
 }
 
-bool Checkable::IsReachable(DependencyType dt, Dependency::Ptr *failedDependency, int rstack) const
+bool Checkable::IsReachable(DependencyType dt, int rstack) const
 {
 	if (rstack > l_MaxDependencyRecursionLevel) {
 		Log(LogWarning, "Checkable")
@@ -61,7 +61,7 @@ bool Checkable::IsReachable(DependencyType dt, Dependency::Ptr *failedDependency
 	}
 
 	for (const Checkable::Ptr& checkable : GetParents()) {
-		if (!checkable->IsReachable(dt, failedDependency, rstack + 1))
+		if (!checkable->IsReachable(dt, rstack + 1))
 			return false;
 	}
 
@@ -71,9 +71,6 @@ bool Checkable::IsReachable(DependencyType dt, Dependency::Ptr *failedDependency
 		Host::Ptr host = service->GetHost();
 
 		if (host && host->GetState() != HostUp && host->GetStateType() == StateTypeHard) {
-			if (failedDependency)
-				*failedDependency = nullptr;
-
 			return false;
 		}
 	}
@@ -90,9 +87,6 @@ bool Checkable::IsReachable(DependencyType dt, Dependency::Ptr *failedDependency
 				Log(LogDebug, "Checkable")
 					<< "Non-redundant dependency '" << dep->GetName() << "' failed for checkable '" << GetName() << "': Marking as unreachable.";
 
-				if (failedDependency)
-					*failedDependency = dep;
-
 				return false;
 			}
 
@@ -110,15 +104,9 @@ bool Checkable::IsReachable(DependencyType dt, Dependency::Ptr *failedDependency
 		Log(LogDebug, "Checkable")
 			<< "All dependencies in redundancy group '" << violator->first << "' have failed for checkable '" << GetName() << "': Marking as unreachable.";
 
-		if (failedDependency)
-			*failedDependency = violator->second;
-
 		return false;
 	}
 
-	if (failedDependency)
-		*failedDependency = nullptr;
-
 	return true;
 }
 
diff --git a/lib/icinga/checkable.hpp b/lib/icinga/checkable.hpp
index 12e620ed5..e34b34ef0 100644
--- a/lib/icinga/checkable.hpp
+++ b/lib/icinga/checkable.hpp
@@ -81,7 +81,7 @@ public:
 
 	void AddGroup(const String& name);
 
-	bool IsReachable(DependencyType dt = DependencyState, intrusive_ptr<Dependency> *failedDependency = nullptr, int rstack = 0) const;
+	bool IsReachable(DependencyType dt = DependencyState, int rstack = 0) const;
 	bool AffectsChildren() const;
 
 	AcknowledgementType GetAcknowledgement();