diff --git a/src/platform/webos/DiagnosticDataProviderImpl.cpp b/src/platform/webos/DiagnosticDataProviderImpl.cpp
index 22f90ed..51868a5 100644
--- a/src/platform/webos/DiagnosticDataProviderImpl.cpp
+++ b/src/platform/webos/DiagnosticDataProviderImpl.cpp
@@ -24,6 +24,7 @@
 #include <platform/internal/CHIPDeviceLayerInternal.h>
 
 #include <lib/support/CHIPMem.h>
+#include <lib/support/CHIPMemString.h>
 #include <lib/support/logging/CHIPLogging.h>
 #include <platform/DiagnosticDataProvider.h>
 #include <platform/webos/ConnectivityUtils.h>