diff --git a/modules/desktop_capture/win/wgc_capture_session.cc b/modules/desktop_capture/win/wgc_capture_session.cc
index 22dbf90204..09c336fdc5 100644
--- a/modules/desktop_capture/win/wgc_capture_session.cc
+++ b/modules/desktop_capture/win/wgc_capture_session.cc
@@ -290,7 +290,7 @@ HRESULT WgcCaptureSession::GetFrame(
   // unmap our texture.
   uint8_t* src_data = static_cast<uint8_t*>(map_info.pData);
   std::vector<uint8_t> image_data;
-  image_data.reserve(image_height * row_data_length);
+  image_data.resize(image_height * row_data_length);
   uint8_t* image_data_ptr = image_data.data();
   for (int i = 0; i < image_height; i++) {
     memcpy(image_data_ptr, src_data, row_data_length);