diff --git a/library/Makefile b/library/Makefile
index 54b0651dc..3b91e2556 100644
--- a/library/Makefile
+++ b/library/Makefile
@@ -187,6 +187,7 @@ all: shared static
 endif
 
 static: libmbedcrypto.a libmbedx509.a libmbedtls.a
+	cd ../tests && echo "This is a seedfile that contains 64 bytes (65 on Windows)......" > seedfile
 
 shared: libmbedcrypto.$(DLEXT) libmbedx509.$(DLEXT) libmbedtls.$(DLEXT)