diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index 07e65a061fd3..afd144725a0b 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -1010,6 +1010,9 @@ ifndef NO_AUXTRACE
   ifndef NO_AUXTRACE
     $(call detected,CONFIG_AUXTRACE)
     CFLAGS += -DHAVE_AUXTRACE_SUPPORT
+    ifeq ($(feature-reallocarray), 0)
+      CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
+    endif
   endif
 endif