diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 2b688ca5247..cfd89cbd807 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,8 @@
+2018-09-20  Maciej W. Rozycki  <macro@linux-mips.org>
+
+    	* config.bfd <rs6000-*-aix5.[01], rs6000-*-aix[5-9]*>: Remove
+    	duplicate `case' selectors.
+
 2018-09-20  Nelson Chu <nelson.chu1990@gmail.com>
 
 	* elf32-nds32.c (nds32_elf_relax_loadstore):
diff --git a/bfd/config.bfd b/bfd/config.bfd
index 0e397f540b6..5d8424a5f08 100644
--- a/bfd/config.bfd
+++ b/bfd/config.bfd
@@ -1066,7 +1066,7 @@ case "${targ}" in
     want64=true
     ;;
 #ifdef BFD64
-  powerpc64-*-aix5.[01] | rs6000-*-aix5.[01])
+  powerpc64-*-aix5.[01])
     targ_defvec=rs6000_xcoff64_aix_vec
     targ_selvecs="rs6000_xcoff_vec"
     want64=true
@@ -1079,7 +1079,7 @@ case "${targ}" in
     want64=true
     ;;
 #ifdef BFD64
-  powerpc64-*-aix[5-9]* | rs6000-*-aix[5-9]*)
+  powerpc64-*-aix[5-9]*)
     targ_cflags=-DAIX_WEAK_SUPPORT
     targ_defvec=rs6000_xcoff64_aix_vec
     targ_selvecs="rs6000_xcoff_vec"