diff --git a/Modules/_decimal/libmpdec/basearith.c b/Modules/_decimal/libmpdec/basearith.c
index 35de6b82849..dfe1523927a 100644
--- a/Modules/_decimal/libmpdec/basearith.c
+++ b/Modules/_decimal/libmpdec/basearith.c
@@ -32,7 +32,6 @@
 #include <string.h>
 #include <assert.h>
 #include "constants.h"
-#include "memory.h"
 #include "typearith.h"
 #include "basearith.h"
 
diff --git a/Modules/_decimal/libmpdec/io.c b/Modules/_decimal/libmpdec/io.c
index a45a429dbf1..3aadfb04379 100644
--- a/Modules/_decimal/libmpdec/io.c
+++ b/Modules/_decimal/libmpdec/io.c
@@ -37,7 +37,6 @@
 #include <locale.h>
 #include "bits.h"
 #include "constants.h"
-#include "memory.h"
 #include "typearith.h"
 #include "io.h"
 
diff --git a/Modules/_decimal/libmpdec/memory.c b/Modules/_decimal/libmpdec/memory.c
index 61eb6336eb9..a854e09911b 100644
--- a/Modules/_decimal/libmpdec/memory.c
+++ b/Modules/_decimal/libmpdec/memory.c
@@ -30,7 +30,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include "typearith.h"
-#include "memory.h"
+#include "mpalloc.h"
 
 
 #if defined(_MSC_VER)
diff --git a/Modules/_decimal/libmpdec/memory.h b/Modules/_decimal/libmpdec/mpalloc.h
similarity index 98%
rename from Modules/_decimal/libmpdec/memory.h
rename to Modules/_decimal/libmpdec/mpalloc.h
index 9c98d1a4000..efd711953a3 100644
--- a/Modules/_decimal/libmpdec/memory.h
+++ b/Modules/_decimal/libmpdec/mpalloc.h
@@ -26,8 +26,8 @@
  */
 
 
-#ifndef MEMORY_H
-#define MEMORY_H
+#ifndef MPALLOC_H
+#define MPALLOC_H
 
 
 #include "mpdecimal.h"
diff --git a/Modules/_decimal/libmpdec/mpdecimal.c b/Modules/_decimal/libmpdec/mpdecimal.c
index 593f9f5e03a..328ab922462 100644
--- a/Modules/_decimal/libmpdec/mpdecimal.c
+++ b/Modules/_decimal/libmpdec/mpdecimal.c
@@ -36,7 +36,7 @@
 #include "bits.h"
 #include "convolute.h"
 #include "crt.h"
-#include "memory.h"
+#include "mpalloc.h"
 #include "typearith.h"
 #include "umodarith.h"