diff --git a/src/platform/posix/threading.h b/src/platform/posix/threading.h
index 7ca05ce15..8c08049dc 100644
--- a/src/platform/posix/threading.h
+++ b/src/platform/posix/threading.h
@@ -79,7 +79,7 @@ static inline int ThreadJoin(Thread thread) {
 static inline int ThreadSetName(const char* name) {
 #ifdef __APPLE__
 	return pthread_setname_np(name);
-#elif defined(__FreeBSD__)
+#elif defined(__FreeBSD__) || defined(__OpenBSD__)
 	pthread_set_name_np(pthread_self(), name);
 	return 0;
 #else
diff --git a/src/platform/qt/Window.cpp b/src/platform/qt/Window.cpp
index 29f800c0f..c0c39ebde 100644
--- a/src/platform/qt/Window.cpp
+++ b/src/platform/qt/Window.cpp
@@ -40,8 +40,8 @@ extern "C" {
 
 using namespace QGBA;
 
-#ifdef __WIN32
-// This is a macro everywhere except MinGW, it seems
+#if defined(__WIN32) || defined(__OpenBSD__)
+// This is a macro everywhere except MinGW and OpenBSD, it seems
 using std::isnan;
 #endif