diff --git a/src/system/libroot/posix/string/Jamfile b/src/system/libroot/posix/string/Jamfile
index 3de1379cad..2eced4a0be 100644
--- a/src/system/libroot/posix/string/Jamfile
+++ b/src/system/libroot/posix/string/Jamfile
@@ -35,6 +35,7 @@ KernelMergeObject posix_string.o :
 	strspn.c
 	strstr.c
 	strtok.c
+	strxfrm.c
 
 	: -fPIC -DPIC
 	;
diff --git a/src/system/libroot/posix/string/strxfrm.c b/src/system/libroot/posix/string/strxfrm.c
new file mode 100644
index 0000000000..ac6b6a697b
--- /dev/null
+++ b/src/system/libroot/posix/string/strxfrm.c
@@ -0,0 +1,9 @@
+
+#include <string.h>
+
+size_t
+strxfrm(char *out, const char *in, size_t size)
+{
+	// TODO: To be implemented correctly when we have collation support.
+	return strlcpy(out, in, size);
+}