diff --git a/Source/script.cpp b/Source/script.cpp
index b0577c90..be14c182 100644
--- a/Source/script.cpp
+++ b/Source/script.cpp
@@ -5162,7 +5162,10 @@ int CEXEBuild::doCommand(int which_token, LineParser &line)
       ent.which=EW_FGETS;
       ent.offsets[0]=GetUserVarIndex(line, 1); // file handle
       ent.offsets[1]=GetUserVarIndex(line, 2); // output string
-      ent.offsets[2]=add_string(line.gettoken_str(3)[0]?line.gettoken_str(3):"1023");
+      if (line.gettoken_str(3)[0])
+        ent.offsets[2]=add_string(line.gettoken_str(3));
+      else
+        ent.offsets[2]=add_intstring(NSIS_MAX_STRLEN-1);
       if (ent.offsets[0]<0 || ent.offsets[1]<0) PRINTHELP()
       SCRIPT_MSG("FileRead: %s->%s (max:%s)\n",line.gettoken_str(1),line.gettoken_str(2),line.gettoken_str(3));
     return add_entry(&ent);