diff --git a/dtool/Config.Linux.pp b/dtool/Config.Linux.pp
index 819a002107..25b7b9da49 100644
--- a/dtool/Config.Linux.pp
+++ b/dtool/Config.Linux.pp
@@ -72,7 +72,7 @@
 #define HAVE_SSTREAM
 
 // Do we have <new>?
-#define HAVE_NEW
+#define HAVE_NEW 1
 
 // Do we have <io.h>?
 #define HAVE_IO_H