diff --git a/ndn-cpp/c/util/ndn_memory.c b/ndn-cpp/c/util/ndn_memory.c
index ba3fc2e..8051864 100644
--- a/ndn-cpp/c/util/ndn_memory.c
+++ b/ndn-cpp/c/util/ndn_memory.c
@@ -6,7 +6,7 @@
 
 #include "ndn_memory.h"
 
-#if !HAVE_MEMCMP
+#if !NDN_CPP_HAVE_MEMCMP
 int ndn_memcmp(uint8_t *buf1, uint8_t *buf2, size_t len)
 {
   size_t i;
@@ -24,7 +24,7 @@
 int ndn_memcmp_stub_to_avoid_empty_file_warning = 0;
 #endif
 
-#if !HAVE_MEMCPY
+#if !NDN_CPP_HAVE_MEMCPY
 void ndn_memcpy(uint8_t *dest, uint8_t *src, size_t len)
 {
   size_t i;
@@ -36,7 +36,7 @@
 int ndn_memcpy_stub_to_avoid_empty_file_warning = 0;
 #endif
 
-#if !HAVE_MEMSET
+#if !NDN_CPP_HAVE_MEMSET
 void ndn_memset(uint8_t *dest, int val, size_t len)
 {
   size_t i;
diff --git a/ndn-cpp/c/util/ndn_memory.h b/ndn-cpp/c/util/ndn_memory.h
index abf3bcf..9d23e2d 100644
--- a/ndn-cpp/c/util/ndn_memory.h
+++ b/ndn-cpp/c/util/ndn_memory.h
@@ -5,7 +5,7 @@
  */
 
 /*
- * Based on HAVE_MEMCPY and HAVE_MEMSET in ndn-cpp-config.h, use the library version or a local implementation of memcmp, memcpy and memset.
+ * Based on NDN_CPP_HAVE_MEMCPY and NDN_CPP_HAVE_MEMSET in ndn-cpp-config.h, use the library version or a local implementation of memcmp, memcpy and memset.
  */
 
 #ifndef NDN_MEMORY_H
@@ -17,7 +17,7 @@
 extern "C" {
 #endif
 
-#if HAVE_MEMCMP
+#if NDN_CPP_HAVE_MEMCMP
 #include <memory.h>
 /**
  * Use the library version of memcmp.
@@ -30,7 +30,7 @@
 int ndn_memcmp(uint8_t *buf1, uint8_t *buf2, size_t len);
 #endif
 
-#if HAVE_MEMCPY
+#if NDN_CPP_HAVE_MEMCPY
 #include <memory.h>
 /**
  * Use the library version of memcpy.
@@ -43,7 +43,7 @@
 void ndn_memcpy(uint8_t *dest, uint8_t *src, size_t len);
 #endif
 
-#if HAVE_MEMSET
+#if NDN_CPP_HAVE_MEMSET
 #include <memory.h>
 /**
  * Use the library version of memset.