diff --git a/dmd/mars.c b/dmd/mars.c
index 2aacb602..c103fa25 100644
--- a/dmd/mars.c
+++ b/dmd/mars.c
@@ -39,6 +39,8 @@
 #include "gen/logger.h"
 #include "gen/linker.h"
 
+#include "llvm/Config/config.h"
+
 void getenv_setargv(const char *envvar, int *pargc, char** *pargv);
 
 Global global;
@@ -150,8 +152,8 @@ extern void backend_term();
 
 void usage()
 {
-    printf("LLVM D Compiler %s (based on DMD %s and LLVM 2.4svn)\n%s\n%s\n",
-    global.ldc_version, global.version, global.copyright, global.written);
+    printf("LLVM D Compiler %s (based on DMD %s and %s)\n%s\n%s\n",
+    global.ldc_version, global.version, PACKAGE_STRING, global.copyright, global.written);
     printf("\
 D Language Documentation: http://www.digitalmars.com/d/1.0/index.html\n\
 LDC Homepage: http://www.dsource.org/projects/ldc\n\