diff --git a/reactos/lib/sdk/crt/crt.rbuild b/reactos/lib/sdk/crt/crt.rbuild
index 99d3e2a4137..035908ea74e 100644
--- a/reactos/lib/sdk/crt/crt.rbuild
+++ b/reactos/lib/sdk/crt/crt.rbuild
@@ -316,6 +316,7 @@
amsg.c
assert.c
environ.c
+ fltused.c
getargs.c
i10output.c
initterm.c
diff --git a/reactos/lib/sdk/crt/libcntpr.rbuild b/reactos/lib/sdk/crt/libcntpr.rbuild
index ca472b54487..cb52f8868d4 100644
--- a/reactos/lib/sdk/crt/libcntpr.rbuild
+++ b/reactos/lib/sdk/crt/libcntpr.rbuild
@@ -127,6 +127,10 @@
memicmp.c
+
+ fltused.c
+
+
bsearch.c
lfind.c