diff --git a/module/icp/Makefile.in b/module/icp/Makefile.in
index 7a01b2f08b..09ffb6fa47 100644
--- a/module/icp/Makefile.in
+++ b/module/icp/Makefile.in
@@ -45,7 +45,6 @@ $(MODULE)-objs += algs/aes/aes_modes.o
 $(MODULE)-objs += algs/edonr/edonr.o
 $(MODULE)-objs += algs/sha1/sha1.o
 $(MODULE)-objs += algs/sha2/sha2.o
-$(MODULE)-objs += algs/sha1/sha1.o
 $(MODULE)-objs += algs/skein/skein.o
 $(MODULE)-objs += algs/skein/skein_block.o
 $(MODULE)-objs += algs/skein/skein_iv.o