diff --git a/source/libublsettings-char.c b/source/libublsettings-char.c
index 688b447..770e53d 100644
--- a/source/libublsettings-char.c
+++ b/source/libublsettings-char.c
@@ -255,7 +255,7 @@ char *yon_char_replace(char *source, char *find, char*replace){
         if(!strstr(replace,find)){
             while ((final=strstr(source,find))){
                 int final_size = strlen(final);
-                temp=malloc(-final_size+replace_size);
+                temp=malloc(final_size+replace_size);
                 memset(temp,0,source_size-final_size+replace_size);
                 memcpy(temp,source,source_size-final_size);
                 temp=yon_char_append(temp,replace);