diff --git a/test/index/vocabulary/VocabularyInMemoryBinSearchTest.cpp b/test/index/vocabulary/VocabularyInMemoryBinSearchTest.cpp
index d2f81d30f2..cec3cd21cc 100644
--- a/test/index/vocabulary/VocabularyInMemoryBinSearchTest.cpp
+++ b/test/index/vocabulary/VocabularyInMemoryBinSearchTest.cpp
@@ -95,11 +95,6 @@ auto createVocabularyFromDisk(std::string filename) {
   };
 }
 
-auto createVocabularyFromDiskImpl(std::string filename) {
-  return [c = VocabularyCreator{std::move(filename)}](auto&&... args) mutable {
-    return c.createVocabularyFromDiskImpl(AD_FWD(args)...);
-  };
-}
 }  // namespace
 
 TEST(VocabularyInMemoryBinSearch, LowerUpperBoundStdLess) {
diff --git a/test/index/vocabulary/VocabularyInternalExternalTest.cpp b/test/index/vocabulary/VocabularyInternalExternalTest.cpp
index 85a08287b3..23c03b97ec 100644
--- a/test/index/vocabulary/VocabularyInternalExternalTest.cpp
+++ b/test/index/vocabulary/VocabularyInternalExternalTest.cpp
@@ -88,11 +88,6 @@ auto createVocabularyFromDisk(std::string filename) {
   };
 }
 
-auto createVocabularyFromDiskImpl(std::string filename) {
-  return [c = VocabularyCreator{std::move(filename)}](auto&&... args) mutable {
-    return c.createVocabularyFromDiskImpl(AD_FWD(args)...);
-  };
-}
 }  // namespace
 
 TEST(VocabularyInternalExternal, LowerUpperBoundStdLess) {
diff --git a/test/index/vocabulary/VocabularyOnDiskTest.cpp b/test/index/vocabulary/VocabularyOnDiskTest.cpp
index f199d94809..54fc934f24 100644
--- a/test/index/vocabulary/VocabularyOnDiskTest.cpp
+++ b/test/index/vocabulary/VocabularyOnDiskTest.cpp
@@ -97,12 +97,6 @@ auto createVocabularyFromDisk(std::string filename) {
     return c.createVocabularyFromDisk(AD_FWD(args)...);
   };
 }
-
-auto createVocabularyFromDiskImpl(std::string filename) {
-  return [c = VocabularyCreator{std::move(filename)}](auto&&... args) mutable {
-    return c.createVocabularyFromDiskImpl(AD_FWD(args)...);
-  };
-}
 }  // namespace
 
 TEST(VocabularyOnDisk, LowerUpperBoundStdLess) {