diff --git a/CVS-INFO b/CVS-INFO
index 40bccf780..985b32c64 100644
--- a/CVS-INFO
+++ b/CVS-INFO
@@ -16,8 +16,8 @@ Compile and build instructions follow below.
   CHANGES.$year contains changes for the particular year.
 
   tests/memanalyze.pl
-                is for analyzing the output generated by curl if -DMALLOCDEBUG
-                is used when compiling
+                is for analyzing the output generated by curl if -DCURLDEBUG
+                is used when compiling (run configure with --enable-debug)
 
   buildconf     builds the makefiles and configure stuff
 
diff --git a/configure.ac b/configure.ac
index 0430e9722..f4d01bf77 100644
--- a/configure.ac
+++ b/configure.ac
@@ -931,7 +931,7 @@ AC_HELP_STRING([--disable-debug],[Disable debug options]),
        ;;
   *)   AC_MSG_RESULT(yes)
 
-    CPPFLAGS="$CPPFLAGS -DMALLOCDEBUG"
+    CPPFLAGS="$CPPFLAGS -DCURLDEBUG"
     CFLAGS="$CFLAGS -g" 
     if test "$GCC" = "yes"; then
        CFLAGS="$CFLAGS -W -Wall -Wwrite-strings -pedantic -Wundef -Wpointer-arith -Wnested-externs"