diff --git a/Makefile.inc1 b/Makefile.inc1
index 3a517fc24cd..f005aea9f40 100644
--- a/Makefile.inc1
+++ b/Makefile.inc1
@@ -956,15 +956,6 @@ _cleanobj_fast_depend_hack: .PHONY
 	fi
 .endif
 .endfor
-# 20190916  r352703  shm_open
-.for f in shm_open
-	@if [ -e "${OBJTOP}/lib/libc/.depend.${f}.o" ] && \
-	    egrep -qw '${f}\.[sS]' ${OBJTOP}/lib/libc/.depend.${f}.o; then \
-		echo "Removing stale dependencies for ${f} syscall wrappers"; \
-		rm -f ${OBJTOP}/lib/libc/.depend.${f}.* \
-		   ${_LIBCOMPAT:D${LIBCOMPAT_OBJTOP}/lib/libc/.depend.${f}.*}; \
-	fi
-.endfor
 
 _worldtmp: .PHONY
 	@echo
diff --git a/tools/build/depend-cleanup.sh b/tools/build/depend-cleanup.sh
index 58a7eb74175..08243aef93a 100755
--- a/tools/build/depend-cleanup.sh
+++ b/tools/build/depend-cleanup.sh
@@ -32,5 +32,7 @@ clean_dep()
 }
 
 # Date      Rev      Description
+# 20190916  r352703  shm_open syscall reimplemented in C
+clean_dep lib/libc   shm_open c
 # 20200310  r358851  rename of openmp's ittnotify_static.c to .cpp
 clean_dep lib/libomp ittnotify_static c