1 files changed, 10 insertions, 3 deletions
diff --git a/src/mongo/db/pipeline/expression.cpp b/src/mongo/db/pipeline/expression.cpp
index f008c6e7b4c..0db59301a5c 100644
--- a/src/mongo/db/pipeline/expression.cpp
+++ b/src/mongo/db/pipeline/expression.cpp
@@ -1972,8 +1972,12 @@ TimeUnit ExpressionDateDiff::convertToTimeUnit(const Value& value) {
             str::stream() << "$dateDiff requires 'unit' to be a string, but got "
                           << typeName(value.getType()),
             BSONType::String == value.getType());
-    return addContextToAssertionException([&] { return parseTimeUnit(value.getStringData()); },
-                                          "$dateDiff parameter 'unit' value parsing failed"_sd);
+    auto valueAsString = value.getStringData();
+    return addContextToAssertionException(
+        [&]() {
+            return parseTimeUnit(std::string_view{valueAsString.rawData(), valueAsString.size()});
+        },
+        "$dateDiff parameter 'unit' value parsing failed"_sd);
 }
 
 DayOfWeek ExpressionDateDiff::parseStartOfWeek(const Value& value) {
@@ -1981,8 +1985,11 @@ DayOfWeek ExpressionDateDiff::parseStartOfWeek(const Value& value) {
             str::stream() << "$dateDiff requires 'startOfWeek' to be a string, but got "
                           << typeName(value.getType()),
             BSONType::String == value.getType());
+    auto valueAsString = value.getStringData();
     return addContextToAssertionException(
-        [&] { return parseDayOfWeek(value.getStringData()); },
+        [&]() {
+            return parseDayOfWeek(std::string_view{valueAsString.rawData(), valueAsString.size()});
+        },
         "$dateDiff parameter 'startOfWeek' value parsing failed"_sd);
 }