diff --git a/protoc/CppFileGenerator.cpp b/protoc/CppFileGenerator.cpp
index ee93afc144..a0eb51d0ce 100644
--- a/protoc/CppFileGenerator.cpp
+++ b/protoc/CppFileGenerator.cpp
@@ -196,8 +196,8 @@ void FileGenerator::GenerateBuildDescriptors(Printer* printer) {
       "assigndescriptorsname", GlobalAssignDescriptorsName(m_output_name));
     printer->Indent();
 
-    // No longer needed since protobuf 3.7
-#if GOOGLE_PROTOBUF_VERSION < 3007000
+    // No longer needed since protobuf 3.2
+#if GOOGLE_PROTOBUF_VERSION < 3002000
     // Make sure the file has found its way into the pool.  If a descriptor
     // is requested *during* static init then AddDescriptors() may not have
     // been called yet, so we call it manually.  Note that it's fine if
diff --git a/protoc/GeneratorHelpers.cpp b/protoc/GeneratorHelpers.cpp
index d0939c4309..28f8bd40cf 100644
--- a/protoc/GeneratorHelpers.cpp
+++ b/protoc/GeneratorHelpers.cpp
@@ -104,8 +104,8 @@ string FilenameIdentifier(const string& filename) {
   return result;
 }
 
-// No longer needed since protobuf 3.7
-#if GOOGLE_PROTOBUF_VERSION < 3007000
+// No longer needed since protobuf 3.2
+#if GOOGLE_PROTOBUF_VERSION < 3002000
 // Return the name of the AddDescriptors() function for a given file.
 string GlobalAddDescriptorsName(const string& filename) {
   return "protobuf_AddDesc_" + FilenameIdentifier(filename);
diff --git a/protoc/GeneratorHelpers.h b/protoc/GeneratorHelpers.h
index 2e9d311d0e..9bcbf626ff 100644
--- a/protoc/GeneratorHelpers.h
+++ b/protoc/GeneratorHelpers.h
@@ -67,8 +67,8 @@ string StripProto(const string& filename);
 // Convert a file name into a valid identifier.
 string FilenameIdentifier(const string& filename);
 
-// No longer needed since protobuf 3.7
-#if GOOGLE_PROTOBUF_VERSION < 3007000
+// No longer needed since protobuf 3.2
+#if GOOGLE_PROTOBUF_VERSION < 3002000
 // Return the name of the AddDescriptors() function for a given file.
 string GlobalAddDescriptorsName(const string& filename);
 #endif