diff --git a/makepanda/makepanda.py b/makepanda/makepanda.py
index 240df9d6f4..fb3e6afff8 100755
--- a/makepanda/makepanda.py
+++ b/makepanda/makepanda.py
@@ -1303,6 +1303,7 @@ PANDAVERSION_H="""
 #define PANDA_VERSION NVERSION
 #define PANDA_VERSION_STR "VERSION1.VERSION2.VERSION3"
 #define PANDA_DISTRIBUTOR "makepanda"
+#define PANDA_PACKAGE_VERSION_STR ""
 """
 
 CHECKPANDAVERSION_CXX="""