diff --git a/include/renderdoc_app.h b/include/renderdoc_app.h
index debd0c72fdd..b2d10c5e2d2 100644
--- a/include/renderdoc_app.h
+++ b/include/renderdoc_app.h
@@ -35,7 +35,7 @@
 
 #if defined(WIN32) || defined(__WIN32__) || defined(_WIN32) || defined(_MSC_VER)
 #define RENDERDOC_CC __cdecl
-#elif defined(__linux__) || defined(__HAIKU__)
+#elif defined(__linux__)
 #define RENDERDOC_CC
 #elif defined(__APPLE__)
 #define RENDERDOC_CC