diff --git a/func.cc b/func.cc
index 9aaa9a2..623e56e 100644
--- a/func.cc
+++ b/func.cc
@@ -533,7 +533,9 @@ static void ShellFuncImpl(const string& shell, const string& cmd,
 static vector<CommandResult*> g_command_results;
 
 bool ShouldStoreCommandResult(StringPiece cmd) {
-  if (HasWord(cmd, "date") || HasWord(cmd, "echo"))
+  // We really just want to ignore this one, or remove BUILD_DATETIME from
+  // Android completely
+  if (cmd == "date +%s")
     return false;
 
   Pattern pat(g_flags.ignore_dirty_pattern);