diff --git a/gcc/config/rs6000/rs6000.h b/gcc/config/rs6000/rs6000.h
index e6ecd4c29f4..20bc635d287 100644
--- a/gcc/config/rs6000/rs6000.h
+++ b/gcc/config/rs6000/rs6000.h
@@ -1186,6 +1186,9 @@ struct rs6000_args {int words, fregno, nargs_prototype; };
 /* Define if the object format being used is COFF or a superset.  */
 #define OBJECT_FORMAT_COFF
 
+/* This is the only version of nm that collect2 can work with.  */
+#define REAL_NM_FILE_NAME "/usr/ucb/nm"
+
 /* We don't have GAS for the RS/6000 yet, so don't write out special
    .stabs in cc1plus.  */