diff --git a/regress/misc/fuzz-harness/agent_fuzz.cc b/regress/misc/fuzz-harness/agent_fuzz.cc
index 3013f54d5..ad85b2f9a 100644
--- a/regress/misc/fuzz-harness/agent_fuzz.cc
+++ b/regress/misc/fuzz-harness/agent_fuzz.cc
@@ -1,9 +1,7 @@
 // cc_fuzz_target test for ssh-agent.
 extern "C" {
 
-#ifdef HAVE_STDINT_H
-# include <stdint.h>
-#endif
+#include <stdint.h>
 #include <sys/types.h>
 
 extern void test_one(const uint8_t* s, size_t slen);