diff --git a/cJSON.c b/cJSON.c
index 4e4979e9..1a35f19b 100644
--- a/cJSON.c
+++ b/cJSON.c
@@ -1294,7 +1294,7 @@ CJSON_PUBLIC(char *) cJSON_PrintBuffered(const cJSON *item, int prebuffer, cJSON
     return (char*)p.buffer;
 }
 
-CJSON_PUBLIC(cJSON_bool) cJSON_PrintPreallocated(cJSON *item, char *buffer, const int length, const cJSON_bool format)
+CJSON_PUBLIC(cJSON_bool) cJSON_PrintPreallocated(const cJSON *item, char *buffer, int length, cJSON_bool format)
 {
     printbuffer p = { 0, 0, 0, 0, 0, 0, { 0, 0, 0 } };
 
diff --git a/cJSON.h b/cJSON.h
index 218cc9ea..4b870195 100644
--- a/cJSON.h
+++ b/cJSON.h
@@ -160,7 +160,7 @@ CJSON_PUBLIC(char *) cJSON_PrintUnformatted(const cJSON *item);
 CJSON_PUBLIC(char *) cJSON_PrintBuffered(const cJSON *item, int prebuffer, cJSON_bool fmt);
 /* Render a cJSON entity to text using a buffer already allocated in memory with given length. Returns 1 on success and 0 on failure. */
 /* NOTE: cJSON is not always 100% accurate in estimating how much memory it will use, so to be safe allocate 5 bytes more than you actually need */
-CJSON_PUBLIC(cJSON_bool) cJSON_PrintPreallocated(cJSON *item, char *buffer, const int length, const cJSON_bool format);
+CJSON_PUBLIC(cJSON_bool) cJSON_PrintPreallocated(const cJSON *item, char *buffer, int length, cJSON_bool format);
 /* Delete a cJSON entity and all subentities. */
 CJSON_PUBLIC(void) cJSON_Delete(cJSON *item);