diff --git a/utils/sbtools/elf.c b/utils/sbtools/elf.c
index 80bff01c4c..896c9cb1c0 100644
--- a/utils/sbtools/elf.c
+++ b/utils/sbtools/elf.c
@@ -272,10 +272,10 @@ void elf_write_file(struct elf_params_t *params, elf_write_fn_t write, void *use
 
     /* allocate enough size to hold any combinaison of .text/.bss in the string table:
      * - one empty name ("\0")
-     * - at most N names of the form ".textXX\0" or ".bssXX\0"
+     * - at most N names of the form ".textXXXX\0" or ".bssXXXX\0"
      * - one name ".shstrtab\0" */
     char *strtbl_content = malloc(1 + strlen(".shstrtab") + 1 +
-        phnum * (strlen(".textXX") + 1));
+        phnum * (strlen(".textXXXX") + 1));
     
     strtbl_content[0] = '\0';
     strcpy(&strtbl_content[1], ".shstrtab");