diff --git a/src/lib-sieve/sieve-code.c b/src/lib-sieve/sieve-code.c
index 013b95f31d6e2e381a206ade1da7d8226db8715a..4eabb881bb26c5790fe1782df6d6c9931afccf38 100644
--- a/src/lib-sieve/sieve-code.c
+++ b/src/lib-sieve/sieve-code.c
@@ -286,7 +286,7 @@ static bool opr_number_dump
 		const char *field_name);
 static bool opr_number_read
 	(const struct sieve_runtime_env *renv, sieve_size_t *address, 
-		sieve_size_t *number_r);
+		sieve_number_t *number_r);
 
 const struct sieve_opr_number_interface number_interface = { 
 	opr_number_dump, 
@@ -437,7 +437,7 @@ static bool opr_number_dump
 
 static bool opr_number_read
 (const struct sieve_runtime_env *renv, sieve_size_t *address, 
-	sieve_size_t *number_r)
+	sieve_number_t *number_r)
 { 
 	return sieve_binary_read_integer(renv->sbin, address, number_r);
 }
diff --git a/src/lib-sieve/sieve-code.h b/src/lib-sieve/sieve-code.h
index 957bdc24f76c15300d4c458512754c457bd1d109..f6e7e79ba9d3fab69576ec7dc8349bf91ad112df 100644
--- a/src/lib-sieve/sieve-code.h
+++ b/src/lib-sieve/sieve-code.h
@@ -139,7 +139,7 @@ struct sieve_opr_stringlist_interface {
 
 /* Number */
 
-void sieve_opr_number_emit(struct sieve_binary *sbin, sieve_size_t number);
+void sieve_opr_number_emit(struct sieve_binary *sbin, sieve_number_t number);
 bool sieve_opr_number_dump_data	
 	(const struct sieve_dumptime_env *denv, const struct sieve_operand *operand,
 		sieve_size_t *address, const char *field_name);