diff --git a/src/H5private.h b/src/H5private.h
index f14b54b953b..c08da407f5e 100644
--- a/src/H5private.h
+++ b/src/H5private.h
@@ -1158,9 +1158,6 @@ H5_DLL H5_ATTR_CONST int Nflock(int fd, int operation);
 #ifndef HDsymlink
 #define HDsymlink(F1, F2) symlink(F1, F2)
 #endif
-#ifndef HDsystem
-#define HDsystem(S) system(S)
-#endif
 #ifndef HDtime
 #define HDtime(T) time(T)
 #endif
diff --git a/tools/test/perform/iopipe.c b/tools/test/perform/iopipe.c
index fb62f169fff..d47420a43aa 100644
--- a/tools/test/perform/iopipe.c
+++ b/tools/test/perform/iopipe.c
@@ -99,10 +99,10 @@ synchronize(void)
 #else
     int H5_ATTR_NDEBUG_UNUSED status;
 
-    status = HDsystem("sync");
+    status = system("sync");
     assert(status >= 0);
 
-    status = HDsystem("df >/dev/null");
+    status = system("df >/dev/null");
     assert(status >= 0);
 #endif
 }