diff --git a/src/test/Makefile.am b/src/test/Makefile.am
index 4ae1e3e..befadcd 100644
--- a/src/test/Makefile.am
+++ b/src/test/Makefile.am
@@ -29,7 +29,7 @@ test_sendevolumenregler_LDADD = \
 	$(top_builddir)/src/libsendevolumenregler/libsendevolumenregler.a \
 	-lm
 
-test_compandor_SOURCES = dummy.x test_compandor.c
+test_compandor_SOURCES = dummy.c test_compandor.c
 
 test_compandor_LDADD = \
 	$(COMMON_LA) \
@@ -46,7 +46,7 @@ test_emphasis_LDADD = \
 	$(top_builddir)/src/liboptions/liboptions.a \
 	-lm
 
-test_dtmf_SOURCES = dummy.x test_dtmf.c
+test_dtmf_SOURCES = dummy.c test_dtmf.c
 
 test_dtmf_LDADD = \
 	$(COMMON_LA) \