diff --git a/src/boe.infodlg.cpp b/src/boe.infodlg.cpp
index bb3a7fbf..db4e0d07 100644
--- a/src/boe.infodlg.cpp
+++ b/src/boe.infodlg.cpp
@@ -838,7 +838,10 @@ static void give_help(short help1,short help2,cDialog* parent) {
 	}
 	if(!get_bool_pref("ShowInstantHelp", true) && !help_forced)
 		return;
+	if(get_iarray_pref_contains("ReceivedHelp", help1))
+		return;
 	append_iarray_pref("ReceivedHelp", help1);
+	append_iarray_pref("ReceivedHelp", help2);
 	str1 = get_str("help",help1);
 	if(help2 > 0)
 		str2 = get_str("help",help2);
diff --git a/src/tools/prefs.hpp b/src/tools/prefs.hpp
index 788790f9..4296c51b 100644
--- a/src/tools/prefs.hpp
+++ b/src/tools/prefs.hpp
@@ -21,6 +21,11 @@ int get_int_pref(std::string keypath, int fallback = 0);
 void append_iarray_pref(std::string keypath, int value);
 std::vector<int> get_iarray_pref(std::string keypath);
 
+inline bool get_iarray_pref_contains(std::string keypath, int value) {
+	const std::vector<int>& val = get_iarray_pref(keypath);
+	return std::find(val.begin(), val.end(), value) != val.end();
+}
+
 void clear_pref(std::string keypath);
 bool sync_prefs();