1 files changed, 9 insertions, 1 deletions
diff --git a/src/util/system.cpp b/src/util/system.cpp
index f22256615f..526bf559c3 100644
--- a/src/util/system.cpp
+++ b/src/util/system.cpp
@@ -9,7 +9,6 @@
 #include <util/strencodings.h>
 #include <util/translation.h>
 
-#include <stdarg.h>
 
 #if (defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__DragonFly__))
 #include <pthread.h>
@@ -380,6 +379,15 @@ bool ArgsManager::ParseParameters(int argc, const char* const argv[], std::strin
 
     for (int i = 1; i < argc; i++) {
         std::string key(argv[i]);
+
+#ifdef MAC_OSX
+        // At the first time when a user gets the "App downloaded from the
+        // internet" warning, and clicks the Open button, macOS passes
+        // a unique process serial number (PSN) as -psn_... command-line
+        // argument, which we filter out.
+        if (key.substr(0, 5) == "-psn_") continue;
+#endif
+
         if (key == "-") break; //bitcoin-tx using stdin
         std::string val;
         size_t is_index = key.find('=');