diff --git a/client/Makefile.curl.am b/client/Makefile.curl.am
index 3c22562804..09787f40c4 100644
--- a/client/Makefile.curl.am
+++ b/client/Makefile.curl.am
@@ -52,7 +52,6 @@ boinc_client_SOURCES = \
     net_xfer_curl.C \
     pers_file_xfer.C \
     scheduler_op.C \
-    ss_logic.C \
     time_stats.C \
     whetstone.C
 
diff --git a/client/Makefile.linux b/client/Makefile.linux
index 3b519780ae..fc6b7b9350 100644
--- a/client/Makefile.linux
+++ b/client/Makefile.linux
@@ -41,7 +41,6 @@ OBJ = \
     net_stats.o \
     pers_file_xfer.o \
     scheduler_op.o \
-    ss_logic.o \
     time_stats.o  \
     whetstone.o