diff --git a/epan/to_str.c b/epan/to_str.c
index e3be688c84..9ef29fe01d 100644
--- a/epan/to_str.c
+++ b/epan/to_str.c
@@ -200,7 +200,7 @@ bytestring_to_str(wmem_allocator_t *scope, const guint8 *ad, const guint32 len,
 }
 
 char *
-bytes_to_str(wmem_allocator_t *allocator, const guint8 *bd, int bd_len)
+bytes_to_str(wmem_allocator_t *scope, const guint8 *bd, int bd_len)
 {
 	gchar *cur;
 	gchar *cur_ptr;
@@ -209,7 +209,7 @@ bytes_to_str(wmem_allocator_t *allocator, const guint8 *bd, int bd_len)
 	if (!bd)
 		REPORT_DISSECTOR_BUG("Null pointer passed to bytes_to_str()");
 
-	cur=(gchar *)wmem_alloc(allocator, MAX_BYTE_STR_LEN+3+1);
+	cur=(gchar *)wmem_alloc(scope, MAX_BYTE_STR_LEN+3+1);
 	if (bd_len <= 0) { cur[0] = '\0'; return cur; }
 
 	if (bd_len > MAX_BYTE_STR_LEN/2) {	/* bd_len > 24 */
diff --git a/epan/to_str.h b/epan/to_str.h
index a57f15e19a..b7056c5752 100644
--- a/epan/to_str.h
+++ b/epan/to_str.h
@@ -138,7 +138,7 @@ WS_DLL_PUBLIC gchar* tvb_address_var_to_str(wmem_allocator_t *scope, tvbuff_t *t
  * @param bd_len The length of the byte array
  * @return A pointer to the formatted string
  */
-WS_DLL_PUBLIC char *bytes_to_str(wmem_allocator_t *allocator, const guint8 *bd, int bd_len);
+WS_DLL_PUBLIC char *bytes_to_str(wmem_allocator_t *scope, const guint8 *bd, int bd_len);
 
 /** Turn an array of bytes into a string showing the bytes in hex,
  *  separated by a punctuation character.