diff --git a/simgear/misc/Makefile.am b/simgear/misc/Makefile.am
index 4cd43742..0014ec16 100644
--- a/simgear/misc/Makefile.am
+++ b/simgear/misc/Makefile.am
@@ -10,6 +10,7 @@ lib_LIBRARIES = libsgmisc.a
 
 include_HEADERS = \
         commands.hxx \
+        exception.hxx
 	props.hxx \
 	sg_path.hxx \
 	sgstream.hxx \
@@ -20,6 +21,7 @@ include_HEADERS = \
 
 libsgmisc_a_SOURCES = \
         commands.cxx \
+        exception.cxx \
 	props.cxx \
         props_io.cxx \
 	sg_path.cxx \
diff --git a/simgear/misc/props_test.cxx b/simgear/misc/props_test.cxx
index da88d00f..15a48abc 100644
--- a/simgear/misc/props_test.cxx
+++ b/simgear/misc/props_test.cxx
@@ -334,10 +334,8 @@ int main (int ac, char ** av)
   for (int i = 1; i < ac; i++) {
     cout << "Reading " << av[i] << endl;
     SGPropertyNode root;
-    if (!readProperties(av[i], &root))
-      cerr << "Failed to read properties from " << av[i] << endl;
-    else
-      writeProperties(cout, &root);
+    readProperties(av[i], &root);
+    writeProperties(cout, &root);
     cout << endl;
   }