diff --git a/dtool/src/dtoolutil/vector_string.cxx b/dtool/src/dtoolutil/vector_string.cxx
index 2b7ba4202a..0e5df2ce1d 100644
--- a/dtool/src/dtoolutil/vector_string.cxx
+++ b/dtool/src/dtoolutil/vector_string.cxx
@@ -13,8 +13,8 @@
 
 #include "vector_string.h"
 
-#define EXPCL EXPCL_DTOOLCONFIG
-#define EXPTP EXPTP_DTOOLCONFIG
+#define EXPCL EXPCL_DTOOL
+#define EXPTP EXPTP_DTOOL
 #define TYPE std::string
 #define NAME vector_string