diff --git a/test/include/test/arena_decay.h b/test/include/test/arena_util.h
similarity index 100%
rename from test/include/test/arena_decay.h
rename to test/include/test/arena_util.h
diff --git a/test/unit/arena_decay.c b/test/unit/arena_decay.c
index bbfd23a5..e991f4dd 100644
--- a/test/unit/arena_decay.c
+++ b/test/unit/arena_decay.c
@@ -1,5 +1,5 @@
 #include "test/jemalloc_test.h"
-#include "test/arena_decay.h"
+#include "test/arena_util.h"
 
 #include "jemalloc/internal/ticker.h"
 
diff --git a/test/unit/san.c b/test/unit/san.c
index eb9ff517..0daa282b 100644
--- a/test/unit/san.c
+++ b/test/unit/san.c
@@ -1,5 +1,5 @@
 #include "test/jemalloc_test.h"
-#include "test/arena_decay.h"
+#include "test/arena_util.h"
 #include "test/san.h"
 
 #include "jemalloc/internal/san.h"
diff --git a/test/unit/san_bump.c b/test/unit/san_bump.c
index fbee53e5..cafa37fe 100644
--- a/test/unit/san_bump.c
+++ b/test/unit/san_bump.c
@@ -1,5 +1,5 @@
 #include "test/jemalloc_test.h"
-#include "test/arena_decay.h"
+#include "test/arena_util.h"
 
 #include "jemalloc/internal/arena_structs.h"
 #include "jemalloc/internal/san_bump.h"