diff --git a/gdb/config/irix4.mh b/gdb/config/irix4.mh
index d6276ccd7ab..f5d08d6ec42 100644
--- a/gdb/config/irix4.mh
+++ b/gdb/config/irix4.mh
@@ -5,3 +5,4 @@ ALLOCA=alloca.o
 ALLOCA1=alloca.o
 MUNCH_DEFINE=-B
 XM_CLIBS=-lbsd
+INSTALL = cp