diff --git a/common/openpgpdefs.h b/common/openpgpdefs.h
index 85a4251de..73776b368 100644
--- a/common/openpgpdefs.h
+++ b/common/openpgpdefs.h
@@ -184,5 +184,11 @@ typedef enum
   }
 compress_algo_t;
 
+/* Limits to be used for static arrays.  */
+#define OPENPGP_MAX_NPKEY  5  /* Maximum number of public key parameters. */
+#define OPENPGP_MAX_NSKEY  7  /* Maximum number of secret key parameters. */
+#define OPENPGP_MAX_NSIG   2  /* Maximum number of signature parameters.  */
+#define OPENPGP_MAX_NENC   2  /* Maximum number of encryption parameters. */
+
 
 #endif /*GNUPG_COMMON_OPENPGPDEFS_H*/
diff --git a/g10/packet.h b/g10/packet.h
index 6d01b10b5..d273bb348 100644
--- a/g10/packet.h
+++ b/g10/packet.h
@@ -34,11 +34,11 @@
 #define DEBUG_PARSE_PACKET 1
 
 
-/* Constants to allocate static MPI arrays. */
-#define PUBKEY_MAX_NPKEY  5
-#define PUBKEY_MAX_NSKEY  7
-#define PUBKEY_MAX_NSIG   2
-#define PUBKEY_MAX_NENC   2
+/* Constants to allocate static MPI arrays.  */
+#define PUBKEY_MAX_NPKEY  OPENPGP_MAX_NPKEY
+#define PUBKEY_MAX_NSKEY  OPENPGP_MAX_NSKEY
+#define PUBKEY_MAX_NSIG   OPENPGP_MAX_NSIG
+#define PUBKEY_MAX_NENC   OPENPGP_MAX_NENC
 
 /* Usage flags */
 #define PUBKEY_USAGE_SIG     GCRY_PK_USAGE_SIGN  /* Good for signatures. */