Fix bug with make install without tests

closes #232
diff --git a/ChangeLog b/ChangeLog
index e33e3f8..62658ac 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -15,6 +15,8 @@
    * Fix compile error with armcc 5 with --gnu option.
    * Fix bug in Makefile that caused programs not to be installed correctly
      (found by robotanarchy) (#232).
+   * Fix bug in Makefile that prevented from installing without building the
+     tests (found by robotanarchy) (#232).
 
 Changes
    * The PEM parser now accepts a trailing space at end of lines (#226).
diff --git a/Makefile b/Makefile
index e1fb3cf..7f03115 100644
--- a/Makefile
+++ b/Makefile
@@ -20,7 +20,7 @@
 	$(MAKE) -C tests
 
 ifndef WINDOWS
-install: all
+install: no_test
 	mkdir -p $(DESTDIR)/include/mbedtls
 	cp -r include/mbedtls $(DESTDIR)/include