diff --git a/pgxn/neon/neon_perf_counters.c b/pgxn/neon/neon_perf_counters.c
index 3e86d5b262..de653826c0 100644
--- a/pgxn/neon/neon_perf_counters.c
+++ b/pgxn/neon/neon_perf_counters.c
@@ -32,7 +32,7 @@ NeonPerfCountersShmemSize(void)
 	return size;
 }
 
-bool
+void
 NeonPerfCountersShmemInit(void)
 {
 	bool		found;
diff --git a/pgxn/neon/neon_perf_counters.h b/pgxn/neon/neon_perf_counters.h
index ae35e8c3a5..02163ada55 100644
--- a/pgxn/neon/neon_perf_counters.h
+++ b/pgxn/neon/neon_perf_counters.h
@@ -105,7 +105,7 @@ extern neon_per_backend_counters *neon_per_backend_counters_shared;
 extern void inc_getpage_wait(uint64 latency);
 
 extern Size NeonPerfCountersShmemSize(void);
-extern bool NeonPerfCountersShmemInit(void);
+extern void NeonPerfCountersShmemInit(void);
 
 
 #endif							/* NEON_PERF_COUNTERS_H */