diff --git a/src/lib/protocols/thrift.c b/src/lib/protocols/thrift.c
index 344795523df..49016608d5e 100644
--- a/src/lib/protocols/thrift.c
+++ b/src/lib/protocols/thrift.c
@@ -120,7 +120,7 @@ static void thrift_set_method(struct ndpi_detection_module_struct *ndpi_struct,
     ndpi_set_risk(ndpi_struct, flow, NDPI_INVALID_CHARACTERS, "Invalid method name");
     flow->protos.thrift.method[0] = '\0';
   } else {
-    strncpy(flow->protos.thrift.method, method, method_length);
+    strncpy(flow->protos.thrift.method, method, MIN(sizeof(flow->protos.thrift.method), method_length));
   }
 }