diff --git a/headers/os/arch/mipsel/arch_debugger.h b/headers/os/arch/mipsel/arch_debugger.h
new file mode 100644
index 0000000000..17a8210873
--- /dev/null
+++ b/headers/os/arch/mipsel/arch_debugger.h
@@ -0,0 +1,13 @@
+/*
+ * Copyright 2009, Haiku Inc.
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef _ARCH_MIPSEL_DEBUGGER_H
+#define _ARCH_MIPSEL_DEBUGGER_H
+
+#warning MIPSEL: fixme
+struct debug_cpu_state {
+	uint32	dummy;
+} __attribute__((aligned(8)));
+
+#endif	// _ARCH_MIPSEL_DEBUGGER_H
diff --git a/headers/os/kernel/OS.h b/headers/os/kernel/OS.h
index f3ed748a55..339b50dfdf 100644
--- a/headers/os/kernel/OS.h
+++ b/headers/os/kernel/OS.h
@@ -402,6 +402,8 @@ extern void ktrace_vprintf(const char *format, va_list args);
 #	define B_MAX_CPU_COUNT	1
 #elif __ARM__
 #	define B_MAX_CPU_COUNT	1
+#elif __MIPSEL__
+#	define B_MAX_CPU_COUNT	1
 #else
 #	warning Unknown cpu
 #	define B_MAX_CPU_COUNT	1
diff --git a/headers/os/kernel/debugger.h b/headers/os/kernel/debugger.h
index 67b69492d6..417b8490ef 100644
--- a/headers/os/kernel/debugger.h
+++ b/headers/os/kernel/debugger.h
@@ -17,6 +17,8 @@
 	#include <arch/ppc/arch_debugger.h>
 #elif __M68K__
 	#include <arch/m68k/arch_debugger.h>
+#elif __MIPSEL__
+	#include <arch/mipsel/arch_debugger.h>
 #else
 	#error you need to write a <arch/<cpu>/arch_debugger.h>
 #endif