diff --git a/tests/examples/Makefile.am b/tests/examples/Makefile.am
index a28e4b087..5ca03150a 100644
--- a/tests/examples/Makefile.am
+++ b/tests/examples/Makefile.am
@@ -25,6 +25,6 @@ plugin_example_LDADD = $(builddir)/libcin3.a -lnobugmt -lpthread -ldl
 plugin_example_SOURCES = $(examples_srcdir)/plugin_main.c
 noinst_HEADERS += $(examples_srcdir)/hello_interface.h
 
-noinst_LTLIBRARIES += example_plugin.la
-example_plugin_la_CPPFLAGS = $(CPPFLAGS) -std=gnu99 -Wall -Werror -I$(top_srcdir)/src/lib/
-example_plugin_la_SOURCES = $(examples_srcdir)/example_plugin.c
+#noinst_LTLIBRARIES += example_plugin.la
+#example_plugin_la_CPPFLAGS = $(CPPFLAGS) -std=gnu99 -Wall -Werror -I$(top_srcdir)/src/lib/
+#example_plugin_la_SOURCES = $(examples_srcdir)/example_plugin.c
diff --git a/tests/examples/example_plugin.c b/tests/examples/example_plugin.c
index 1a294b8bf..2f4e96a6c 100644
--- a/tests/examples/example_plugin.c
+++ b/tests/examples/example_plugin.c
@@ -5,40 +5,41 @@
 int myopen(void)
 {
   printf("opened\n");
+  return 0;
 }
 
-int myclose(void);
+int myclose(void)
 {
   printf("closed\n");
+  return 0;
 }
 
-int hallo(void)
+void hallo(void)
 {
   printf("Hallo Welt!\n");
 }
 
-int tschuess(const char* m)
+void tschuess(const char* m)
 {
   printf("Tschues %s\n", m);
 }
 
-int hello(void);
+void hello(void)
 {
   printf("Hello world!\n");
 }
 
-int bye(const char* m)
+void bye(const char* m)
 {
   printf("bye %s\n", m);
-
 }
 
 CINELERRA_INTERFACE_IMPLEMENT(hello, 1, german, myopen, myclose,
-                              CINELERRA_INTERFACE_FUNC(hello, hallo),
-                              CINELERRA_INTERFACE_FUNC(goodbye, tschuess)
+                              //CINELERRA_INTERFACE_FUNC(hello, hallo),
+                              //CINELERRA_INTERFACE_FUNC(goodbye, tschuess)
                               );
 
 CINELERRA_INTERFACE_IMPLEMENT(hello, 1, english, myopen, myclose,
-                              CINELERRA_INTERFACE_FUNC(hello, hello),
-                              CINELERRA_INTERFACE_FUNC(goodbye, bye)
+                              //CINELERRA_INTERFACE_FUNC(hello, hello),
+                              //CINELERRA_INTERFACE_FUNC(goodbye, bye)
                               );