diff --git a/src/ivfflat.h b/src/ivfflat.h
index 5d8535c..0533a83 100644
--- a/src/ivfflat.h
+++ b/src/ivfflat.h
@@ -48,7 +48,7 @@
 #define IvfflatPageGetMeta(page)	((IvfflatMetaPageData *) PageGetContents(page))
 
 #ifdef IVFFLAT_BENCH
-#define Bench(name, code) \
+#define IvfflatBench(name, code) \
 	do { \
 		instr_time	start; \
 		instr_time	duration; \
@@ -59,7 +59,7 @@
 		elog(INFO, "%s: %.3f ms", name, INSTR_TIME_GET_MILLISEC(duration)); \
 	} while (0)
 #else
-#define Bench(name, code) (code)
+#define IvfflatBench(name, code) (code)
 #endif
 
 #if PG_VERSION_NUM < 100000
diff --git a/src/ivfscan.c b/src/ivfscan.c
index 0553a32..dfd52af 100644
--- a/src/ivfscan.c
+++ b/src/ivfscan.c
@@ -271,8 +271,8 @@ ivfflatgettuple(IndexScanDesc scan, ScanDirection dir)
 				return false;
 		}
 
-		Bench("GetScanLists", GetScanLists(scan, value));
-		Bench("GetScanItems", GetScanItems(scan, value));
+		IvfflatBench("GetScanLists", GetScanLists(scan, value));
+		IvfflatBench("GetScanItems", GetScanItems(scan, value));
 		so->first = false;
 
 		/* Clean up if we allocated a new value */