diff --git a/apps/plugins/lua/lobject.c b/apps/plugins/lua/lobject.c
index 7f73114..62ad8e9 100644
--- a/apps/plugins/lua/lobject.c
+++ b/apps/plugins/lua/lobject.c
@@ -181,7 +181,8 @@
 
 void luaO_chunkid (char *out, const char *source, size_t bufflen) {
   if (*source == '=') {
-    strlcpy(out, source+1, bufflen);  /* remove first char */
+    strncpy(out, source+1, bufflen);  /* remove first char */
+    out[bufflen-1] = '\0';  /* ensures null termination */
   }
   else {  /* out = "source", or "...source" */
     if (*source == '@') {
diff --git a/apps/plugins/lua/lstrlib.c b/apps/plugins/lua/lstrlib.c
index 4d58280..3d61036 100644
--- a/apps/plugins/lua/lstrlib.c
+++ b/apps/plugins/lua/lstrlib.c
@@ -737,7 +737,9 @@
   if (isdigit(uchar(*p)))
     luaL_error(L, "invalid format (width or precision too long)");
   *(form++) = '%';
-  strlcpy(form, strfrmt, p - strfrmt + 1);
+  strncpy(form, strfrmt, p - strfrmt + 1);
+  form += p - strfrmt + 1;
+  *form = '\0';
   return p;
 }
 
diff --git a/apps/plugins/lua/rockconf.h b/apps/plugins/lua/rockconf.h
index 02bd0e7..92c0f8c 100644
--- a/apps/plugins/lua/rockconf.h
+++ b/apps/plugins/lua/rockconf.h
@@ -63,7 +63,6 @@
 #define strchr   rb->strchr
 #define strcmp   rb->strcmp
 #define strcpy   rb->strcpy
-#define strlcpy  rb->strlcpy
 #define strlen   rb->strlen
 
 #endif /* _ROCKCONF_H_ */