diff --git a/options/posix/generic/posix_stdlib.cpp b/options/posix/generic/posix_stdlib.cpp
index 76b85dc889..95a4fa575e 100644
--- a/options/posix/generic/posix_stdlib.cpp
+++ b/options/posix/generic/posix_stdlib.cpp
@@ -182,6 +182,10 @@ int mkostemps(char *pattern, int suffixlen, int flags) {
 	return mkostemp(pattern, flags);
 }
 
+int mkstemps(char *pattern, int suffixlen) {
+	return mkostemps(pattern, suffixlen, 0);
+}
+
 char *mkdtemp(char *pattern) {
 	mlibc::infoLogger() << "mlibc mkdtemp(" << pattern << ") called" << frg::endlog;
 	auto n = strlen(pattern);
diff --git a/options/posix/include/bits/posix/posix_stdlib.h b/options/posix/include/bits/posix/posix_stdlib.h
index eb0c39d07f..bc42f71f40 100644
--- a/options/posix/include/bits/posix/posix_stdlib.h
+++ b/options/posix/include/bits/posix/posix_stdlib.h
@@ -30,6 +30,7 @@ int unsetenv(const char *);
 // ----------------------------------------------------------------------------
 
 int mkstemp(char *);
+int mkstemps(char *pattern, int suffixlen);
 int mkostemp(char *, int flags);
 int mkostemps(char *pattern, int suffixlen, int flags);
 char *mkdtemp(char *path);