diff --git a/src/platform/OpenThread/OpenThreadUtils.cpp b/src/platform/OpenThread/OpenThreadUtils.cpp
index 2ceaae6100cbcb..6f89d1a4a28052 100644
--- a/src/platform/OpenThread/OpenThreadUtils.cpp
+++ b/src/platform/OpenThread/OpenThreadUtils.cpp
@@ -126,9 +126,10 @@ void LogOpenThreadStateChange(otInstance * otInst, uint32_t flags)
         }
 #if CHIP_CONFIG_SECURITY_TEST_MODE
         {
-            const otNetworkKey * otKey = otThreadGetNetworkKey(otInst);
+            otNetworkKey otKey;
+            otThreadGetNetworkKey(otInst, &otKey);
             for (int i = 0; i < OT_NETWORK_KEY_SIZE; i++)
-                snprintf(&strBuf[i * 2], 3, "%02X", otKey->m8[i]);
+                snprintf(&strBuf[i * 2], 3, "%02X", otKey.m8[i]);
             ChipLogDetail(DeviceLayer, "   Network Key: %s", strBuf);
         }
 #endif // CHIP_CONFIG_SECURITY_TEST_MODE