diff --git a/.clang-tidy.in b/.clang-tidy.in
index cd81765536e..cb84d1db245 100644
--- a/.clang-tidy.in
+++ b/.clang-tidy.in
@@ -19,6 +19,7 @@ Checks:          '-*,
                   bugprone-misplaced-widening-cast,
                   bugprone-multiple-statement-macro,
                   bugprone-parent-virtual-call,
+                  bugprone-sizeof-container,
                   bugprone-string-integer-assignment,
                   bugprone-suspicious-enum-usage,
                   bugprone-suspicious-memset-usage,
@@ -74,7 +75,6 @@ Checks:          '-*,
                   -bugprone-macro-parentheses,
                   -bugprone-move-forwarding-reference,
                   -bugprone-narrowing-conversions,
-                  -bugprone-sizeof-container,
                   -bugprone-sizeof-expression,
                   -bugprone-string-constructor,
                   -bugprone-string-literal-with-embedded-nul,
diff --git a/src/mongo/db/fts/fts_query_impl.cpp b/src/mongo/db/fts/fts_query_impl.cpp
index 6c081d145e4..3b449eaf8db 100644
--- a/src/mongo/db/fts/fts_query_impl.cpp
+++ b/src/mongo/db/fts/fts_query_impl.cpp
@@ -212,7 +212,7 @@ size_t FTSQueryImpl::getApproximateSize() const {
     auto computeVectorSize = [](const std::vector<std::string>& v) {
         size_t size = 0;
         for (const auto& str : v) {
-            size += sizeof(str) + str.size() + 1;
+            size += sizeof(std::string) + str.size() + 1;
         }
         return size;
     };
@@ -220,7 +220,7 @@ size_t FTSQueryImpl::getApproximateSize() const {
     auto computeSetSize = [](const std::set<std::string>& s) {
         size_t size = 0;
         for (const auto& str : s) {
-            size += sizeof(str) + str.size() + 1;
+            size += sizeof(std::string) + str.size() + 1;
         }
         return size;
     };
diff --git a/src/mongo/db/fts/fts_spec.cpp b/src/mongo/db/fts/fts_spec.cpp
index 2ea96a49839..50b96cc6317 100644
--- a/src/mongo/db/fts/fts_spec.cpp
+++ b/src/mongo/db/fts/fts_spec.cpp
@@ -526,7 +526,7 @@ size_t FTSSpec::getApproximateSize() const {
     auto computeVectorSize = [](const std::vector<std::string>& v) {
         size_t size = 0;
         for (const auto& str : v) {
-            size += sizeof(str) + str.size() + 1;
+            size += sizeof(std::string) + str.size() + 1;
         }
         return size;
     };