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PiperOrigin-RevId: 693663198
diff --git a/src/tools/fuzzer.cxx b/src/tools/fuzzer.cxx
index a462e14..9af5d9c 100644
--- a/src/tools/fuzzer.cxx
+++ b/src/tools/fuzzer.cxx
@@ -31,6 +31,7 @@
 #include <dirent.h>
 #include <string.h>
 #include <libgen.h>
+#include <cstdlib>
 #include <memory>
 #include <vector>
 #include <string>