diff --git a/libfuse/ecfd/tests/HAVE_MALLOC_TRIM.c b/libfuse/ecfd/tests/HAVE_MALLOC_TRIM.c
new file mode 100644
index 00000000..64c1c00e
--- /dev/null
+++ b/libfuse/ecfd/tests/HAVE_MALLOC_TRIM.c
@@ -0,0 +1,7 @@
+#include <malloc.h>
+
+int
+main()
+{
+  malloc_trim(0);
+}