diff --git a/lib/libsetjmp/SOURCES b/lib/libsetjmp/SOURCES
index aa0ac46a23..33c83275f7 100644
--- a/lib/libsetjmp/SOURCES
+++ b/lib/libsetjmp/SOURCES
@@ -13,6 +13,7 @@ sh/setjmp.S
 #endif
 
 #ifdef CPU_MIPS
+#undef mips
 mips/setjmp.S
 #endif