diff --git a/runtime/runtime.c b/runtime/runtime.c
index 9c7556f07..1729e8f0a 100644
--- a/runtime/runtime.c
+++ b/runtime/runtime.c
@@ -393,7 +393,7 @@ char* de_hash (int n) {
 typedef struct {
   char *contents;
   int ptr;
-  int len;
+  int len;  
 } StringBuf;
 
 static StringBuf stringBuf;
@@ -421,11 +421,17 @@ static void vprintStringBuf (char *fmt, va_list args) {
   int     written = 0,
           rest    = 0;
   char   *buf     = (char*) BOX(NULL);
-
+  va_list vsnargs;
+  
  again:
+  va_copy (vsnargs, args);
+  
   buf     = &stringBuf.contents[stringBuf.ptr];
   rest    = stringBuf.len - stringBuf.ptr;
-  written = vsnprintf (buf, rest, fmt, args);
+
+  written = vsnprintf (buf, rest, fmt, vsnargs);
+
+  va_end(vsnargs);
   
   if (written >= rest) {
     extendStringBuf ();
@@ -1219,7 +1225,7 @@ static void fix_unboxed (char *s, va_list va) {
       i++;
     }
     s++;
-  }
+  } 
 }
 
 extern void Lfailure (char *s, ...) {
diff --git a/src/version.ml b/src/version.ml
index 8ea083cb3..039ae3462 100644
--- a/src/version.ml
+++ b/src/version.ml
@@ -1 +1 @@
-let version = "Version 1.10, eb098a6fa, Sun Oct 31 15:34:34 2021 +0300"
+let version = "Version 1.10, 669a4288d, Mon Nov 22 15:51:47 2021 +0300"
diff --git a/stdlib/Makefile b/stdlib/Makefile
index e2f124938..439b39046 100644
--- a/stdlib/Makefile
+++ b/stdlib/Makefile
@@ -2,7 +2,7 @@ SHELL := /bin/bash
 
 FILES=$(wildcard *.lama)
 ALL=$(sort $(FILES:.lama=.o))
-LAMAC=../src/lamac -ds
+LAMAC=../src/lamac -g
 
 all: $(ALL)