diff --git a/components/nif/nifkey.hpp b/components/nif/nifkey.hpp
index 1b1083521c..e32ef76d95 100644
--- a/components/nif/nifkey.hpp
+++ b/components/nif/nifkey.hpp
@@ -174,12 +174,8 @@ namespace Nif
                 const float y = (1.f - curr.mTension) * (1.f + curr.mContinuity) * (1.f - curr.mBias);
                 const float z = (1.f - curr.mTension) * (1.f + curr.mContinuity) * (1.f + curr.mBias);
                 const float w = (1.f - curr.mTension) * (1.f - curr.mContinuity) * (1.f - curr.mBias);
-                const U prevDelta = prev != nullptr ? curr.mValue - prev->mValue
-                    : next != nullptr               ? next->mValue - curr.mValue
-                                                    : U{};
-                const U nextDelta = next != nullptr ? next->mValue - curr.mValue
-                    : prev != nullptr               ? curr.mValue - prev->mValue
-                                                    : U{};
+                const U prevDelta = prev != nullptr ? curr.mValue - prev->mValue : next->mValue - curr.mValue;
+                const U nextDelta = next != nullptr ? next->mValue - curr.mValue : curr.mValue - prev->mValue;
                 curr.mInTan = (prevDelta * x + nextDelta * y) * prevLen / (prevLen + nextLen);
                 curr.mOutTan = (prevDelta * z + nextDelta * w) * nextLen / (prevLen + nextLen);
             }
@@ -209,4 +205,4 @@ namespace Nif
     using BoolKeyMapPtr = std::shared_ptr<BoolKeyMap>;
 
 } // Namespace
-#endif // #ifndef OPENMW_COMPONENTS_NIF_NIFKEY_HPP
+#endif //#ifndef OPENMW_COMPONENTS_NIF_NIFKEY_HPP