diff --git a/apps/plugins/pdbox/PDa/src/m_pd.h b/apps/plugins/pdbox/PDa/src/m_pd
index efd5cf1..49c0af9 100644
--- a/apps/plugins/pdbox/PDa/src/m_pd.h
+++ b/apps/plugins/pdbox/PDa/src/m_pd.h
@@ -121,7 +121,7 @@ typedef union word
int w_index;
} t_word;

-typedef enum
+enum
{
A_NULL,
A_FLOAT,
@@ -135,7 +135,8 @@ typedef enum
A_DOLLSYM,
A_GIMME,
A_CANT
-} t_atomtype;
+};
+typedef unsigned int t_atomtype;

#define A_DEFSYMBOL A_DEFSYM /* better name for this */