diff --git a/util.cpp b/util.cpp
index 87c4deb..b83ed43 100644
--- a/util.cpp
+++ b/util.cpp
@@ -103,15 +103,16 @@
 
 std::vector<conf::SensorInput>
     spliceInputs(const std::vector<std::string>& inputNames,
-                 const std::vector<double>& inputTempToMargin)
+                 const std::vector<double>& inputTempToMargin,
+                 const std::vector<std::string>& missingAcceptableNames)
 {
     std::vector<conf::SensorInput> results;
 
-    // Default to the TempToMargin feature disabled
+    // Default to TempToMargin and MissingIsAcceptable disabled
     for (const auto& inputName : inputNames)
     {
         conf::SensorInput newInput{
-            inputName, std::numeric_limits<double>::quiet_NaN(), false};
+            inputName, std::numeric_limits<double>::quiet_NaN(), false, false};
 
         results.emplace_back(newInput);
     }
@@ -132,6 +133,23 @@
         results[index].convertTempToMargin = true;
     }
 
+    std::set<std::string> acceptableSet;
+
+    // Copy vector to set, to avoid O(n^2) runtime below
+    for (const auto& name : missingAcceptableNames)
+    {
+        acceptableSet.emplace(name);
+    }
+
+    // Flag missingIsAcceptable true if name found in that set
+    for (auto& result : results)
+    {
+        if (acceptableSet.find(result.name) != acceptableSet.end())
+        {
+            result.missingIsAcceptable = true;
+        }
+    }
+
     return results;
 }