1 files changed, 6 insertions, 3 deletions
diff --git a/Source/cmConnection.cxx b/Source/cmConnection.cxx
index bc29e41..6cf8e5b 100644
--- a/Source/cmConnection.cxx
+++ b/Source/cmConnection.cxx
@@ -144,9 +144,12 @@ bool cmConnection::OnServeStart(std::string* errString)
 
 bool cmEventBasedConnection::OnConnectionShuttingDown()
 {
-  this->WriteStream->data = nullptr;
-  this->ReadStream->data = nullptr;
-
+  if (this->WriteStream) {
+    this->WriteStream->data = nullptr;
+  }
+  if (this->ReadStream) {
+    this->ReadStream->data = nullptr;
+  }
   this->ReadStream = nullptr;
   this->WriteStream = nullptr;
   return true;