diff --git a/configure.ac b/configure.ac
index 182e0eb..6a5d865 100644
--- a/configure.ac
+++ b/configure.ac
@@ -127,7 +127,12 @@
 
 AC_SUBST(JS_LIB_BASE)
 
+AC_DEFINE([COUCHJS_NAME], ["couchjs"], ["CouchJS executable name."])
+
 if test x${IS_WINDOWS} = xTRUE; then
+
+    AC_DEFINE([COUCHJS_NAME], ["couchjs.exe"], ["CouchJS executable name."])
+
     if test -f "$JS_LIB_DIR/$JS_LIB_BASE.dll"; then
         # seamonkey 1.7- build layout on Windows
         JS_LIB_BINARY="$JS_LIB_DIR/$JS_LIB_BASE.dll"
diff --git a/src/couchdb/priv/couch_js/help.h b/src/couchdb/priv/couch_js/help.h
index c42c9f5..4102594 100644
--- a/src/couchdb/priv/couch_js/help.h
+++ b/src/couchdb/priv/couch_js/help.h
@@ -13,8 +13,6 @@
 #ifndef COUCHJS_HELP_H
 #define COUCHJS_HELP_H
 
-#include <libgen.h>
-
 #include "config.h"
 
 static const char VERSION_TEMPLATE[] =
@@ -55,7 +53,7 @@
     "\n"
     "Report bugs at <%s>.\n";
 
-#define BASENAME basename((char*)argv[0])
+#define BASENAME COUCHJS_NAME
 
 #define couch_version(basename)  \
     fprintf(                     \