diff --git a/src/bin/termptyesc.c b/src/bin/termptyesc.c
index 2557e0fc..b2420111 100644
--- a/src/bin/termptyesc.c
+++ b/src/bin/termptyesc.c
@@ -36,13 +36,13 @@ _csi_arg_get(Eina_Unicode **ptr)
    Eina_Unicode *b = *ptr;
    int sum = 0;
 
-   while ((*b) && (!isdigit(*b))) b++;
+   while ((*b) && (*b < '0' || *b > '9')) b++;
    if (!*b)
      {
         *ptr = NULL;
         return 0;
      }
-   while (isdigit(*b))
+   while ((*b >= '0') && (*b <= '9'))
      {
         sum *= 10;
         sum += *b - '0';
@@ -1050,7 +1050,7 @@ _xterm_arg_get(Eina_Unicode **ptr)
    Eina_Unicode *b = *ptr;
    int sum = 0;
 
-   while (*b && isdigit(*b))
+   while (*b >= '0' && *b <= '9')
      {
         sum *= 10;
         sum += *b - '0';
@@ -1598,8 +1598,9 @@ _handle_esc(Termpty *ty, const Eina_Unicode *c, Eina_Unicode *ce)
    return 0;
 }
 
+/* XXX: ce is excluded */
 int
-_termpty_handle_seq(Termpty *ty, Eina_Unicode *c, Eina_Unicode *ce)
+termpty_handle_seq(Termpty *ty, Eina_Unicode *c, Eina_Unicode *ce)
 {
    Eina_Unicode *cc;
    int len = 0;
diff --git a/src/bin/termptyesc.h b/src/bin/termptyesc.h
index 982fc6a6..95796732 100644
--- a/src/bin/termptyesc.h
+++ b/src/bin/termptyesc.h
@@ -1,6 +1,6 @@
 #ifndef _TERMPTY_ESC_H__
 #define _TERMPTY_ESC_H__ 1
 
-int _termpty_handle_seq(Termpty *ty, Eina_Unicode *c, Eina_Unicode *ce);
+int termpty_handle_seq(Termpty *ty, Eina_Unicode *c, Eina_Unicode *ce);
 
 #endif