diff --git a/mrbgems/mruby-pack/src/pack.c b/mrbgems/mruby-pack/src/pack.c
index 7688927a5..4baf7dec7 100644
--- a/mrbgems/mruby-pack/src/pack.c
+++ b/mrbgems/mruby-pack/src/pack.c
@@ -298,7 +298,7 @@ typedef struct {
 } format_info_t;
 
 /* Format character lookup function */
-static inline format_info_t get_format_info(unsigned char c) {
+static inline format_info_t pack_format_info(unsigned char c) {
   switch (c) {
     case 'A': return (format_info_t){PACK_DIR_STR, PACK_TYPE_STRING, 0, PACK_FLAG_WIDTH | PACK_FLAG_COUNT2};
     case 'a': return (format_info_t){PACK_DIR_STR, PACK_TYPE_STRING, 0, PACK_FLAG_WIDTH | PACK_FLAG_COUNT2 | PACK_FLAG_a};
@@ -1698,7 +1698,7 @@ read_tmpl(mrb_state *mrb, struct tmpl *tmpl, enum pack_type *typep, mrb_int *siz
   default:
     /* Use O(1) lookup table for standard format characters */
     if (t >= 0 && t < 256) {
-      format_info_t info_val = get_format_info((unsigned char)t);
+      format_info_t info_val = pack_format_info((unsigned char)t);
       const format_info_t *info = &info_val;
       if (info->dir != PACK_DIR_NONE) {
         /* Valid format character found in lookup table */