diff --git a/tools/db_bench_tool.cc b/tools/db_bench_tool.cc
index af8ac78424..6b8da4f66c 100644
--- a/tools/db_bench_tool.cc
+++ b/tools/db_bench_tool.cc
@@ -2768,7 +2768,8 @@ class Benchmark {
     fprintf(stdout, "------------------------------------------------\n");
   }
 
-  void PrintWarnings(bool first_group, const char* compression) {
+  void PrintWarnings([[maybe_unused]] bool first_group,
+                     const char* compression) {
 #if defined(__GNUC__) && !defined(__OPTIMIZE__)
     if (first_group) {
       fprintf(