diff --git a/lldb/include/lldb/Host/HostInfo.h b/lldb/include/lldb/Host/HostInfo.h
index b7010d69d88e7fc..0f7ec0e0aa0d24d 100644
--- a/lldb/include/lldb/Host/HostInfo.h
+++ b/lldb/include/lldb/Host/HostInfo.h
@@ -55,6 +55,9 @@
 #elif defined(__APPLE__)
 #include "lldb/Host/macosx/HostInfoMacOSX.h"
 #define HOST_INFO_TYPE HostInfoMacOSX
+#elif defined(_AIX)
+#include "lldb/Host/aix/HostInfoAIX.h"
+#define HOST_INFO_TYPE HostInfoAIX
 #else
 #include "lldb/Host/posix/HostInfoPosix.h"
 #define HOST_INFO_TYPE HostInfoPosix