diff --git a/silabs_examples/template/efr32/src/AppTask.cpp b/silabs_examples/template/efr32/src/AppTask.cpp
index cc8dd6d6c7d6cd..74f2c429e6ddb1 100644
--- a/silabs_examples/template/efr32/src/AppTask.cpp
+++ b/silabs_examples/template/efr32/src/AppTask.cpp
@@ -275,11 +275,13 @@ CHIP_ERROR AppTask::Init()
 
 // Print setup info on LCD if available
 #ifdef DISPLAY_ENABLED
-    std::string QRCode;
+    // Create buffer for QR code that can fit max size and null terminator.
+    char qrCodeBuffer[chip::QRCodeBasicSetupPayloadGenerator::kMaxQRCodeBase38RepresentationLength + 1];
+    chip::MutableCharSpan QRCode(qrCodeBuffer);
 
     if (GetQRCode(QRCode, chip::RendezvousInformationFlags(chip::RendezvousInformationFlag::kBLE)) == CHIP_NO_ERROR)
     {
-        LCDWriteQRCode((uint8_t *) QRCode.c_str());
+        LCDWriteQRCode((uint8_t *) QRCode.data());
     }
     else
     {