diff --git a/effects/internal/vsthost.cpp b/effects/internal/vsthost.cpp
index 110c31312..89fa02cdc 100644
--- a/effects/internal/vsthost.cpp
+++ b/effects/internal/vsthost.cpp
@@ -146,7 +146,7 @@ void VSTHost::loadPlugin() {
 #ifdef _WIN32
     DWORD dll_err = GetLastError();
     dll_error = QString::number(dll_err);
-#elif __linux__
+#elif defined(__linux__) || defined(__HAIKU__)
     dll_error = dlerror();
 #endif
     qCritical() << "Failed to load VST plugin" << dll_fn << "-" << dll_error;
@@ -363,7 +363,7 @@ void VSTHost::show_interface(bool show) {
     dispatcher(plugin, effEditOpen, 0, 0, reinterpret_cast<HWND>(dialog->windowHandle()->winId()), 0);
 #elif defined(__APPLE__)
     dispatcher(plugin, effEditOpen, 0, 0, reinterpret_cast<NSWindow*>(dialog->windowHandle()->winId()), 0);
-#elif defined(__linux__)
+#elif defined(__linux__) || defined(__HAIKU__)
     dispatcher(plugin, effEditOpen, 0, 0, reinterpret_cast<void*>(dialog->windowHandle()->winId()), 0);
 #endif
   } else {
diff --git a/io/crossplatformlib.cpp b/io/crossplatformlib.cpp
index b669a7b21..f5b7d486b 100644
--- a/io/crossplatformlib.cpp
+++ b/io/crossplatformlib.cpp
@@ -26,7 +26,7 @@ ModulePtr LibLoad(const QString &filename) {
 #ifdef _WIN32
 	LPCWSTR dll_fn_w = reinterpret_cast<const wchar_t*>(filename.utf16());
 	return LoadLibrary(dll_fn_w);
-#elif defined(__linux__) || defined(__APPLE__)
+#elif defined(__linux__) || defined(__APPLE__) || defined(__HAIKU__)
 	return dlopen(filename.toUtf8(), RTLD_LAZY);
 #else
 	qWarning() << "Olive doesn't know how to open dynamic libraries on this platform, external libraries will not be functional";
@@ -37,7 +37,7 @@ ModulePtr LibLoad(const QString &filename) {
 QStringList LibFilter() {
 #ifdef _WIN32
 	return QStringList("*.dll");
-#elif defined(__linux__) || defined(__APPLE__)
+#elif defined(__linux__) || defined(__APPLE__) || defined(__HAIKU__)
     return {"*.so", "*.dylib"};
 #endif
 }
diff --git a/io/crossplatformlib.h b/io/crossplatformlib.h
index 387d16691..bd1935a7d 100644
--- a/io/crossplatformlib.h
+++ b/io/crossplatformlib.h
@@ -28,7 +28,7 @@
 	#define LibAddress GetProcAddress
 	#define LibClose FreeModule
 	#define ModulePtr HMODULE
-#elif defined(__linux__) || defined(__APPLE__)
+#elif defined(__linux__) || defined(__APPLE__) || defined(__HAIKU__)
 	#include <dlfcn.h>
 	#define LibAddress dlsym
 	#define LibClose dlclose
diff --git a/olive.pro b/olive.pro
index ddaedc3c5..f31ec75ab 100644
--- a/olive.pro
+++ b/olive.pro
@@ -304,6 +304,8 @@ mac {
 unix:!mac {
     CONFIG += link_pkgconfig
     PKGCONFIG += libavutil libavformat libavcodec libavfilter libswscale libswresample
+}
+unix:!mac:!haiku {
     LIBS += -ldl
 }
 
diff --git a/project/effectloaders.cpp b/project/effectloaders.cpp
index e2da64487..443caec1e 100644
--- a/project/effectloaders.cpp
+++ b/project/effectloaders.cpp
@@ -231,7 +231,7 @@ void load_frei0r_effects() {
 	QList<QString> effect_dirs = get_effects_paths();
 
 	// add defined paths for frei0r plugins on unix
-#if defined(__APPLE__) || defined(__linux__)
+#if defined(__APPLE__) || defined(__linux__) || defined(__HAIKU__)
 	effect_dirs.prepend("/usr/lib/frei0r-1");
 	effect_dirs.prepend("/usr/local/lib/frei0r-1");
 	effect_dirs.prepend(QDir::homePath() + "/.frei0r-1/lib");