diff --git a/src/cxxTemplates/test/tsBTreeTest.cc b/src/cxxTemplates/test/tsBTreeTest.cc
index 64d263800..efee340fc 100644
--- a/src/cxxTemplates/test/tsBTreeTest.cc
+++ b/src/cxxTemplates/test/tsBTreeTest.cc
@@ -28,7 +28,7 @@ private:
 	const char *pName;
 };
 
-main ()
+int main ()
 {
 	tsBTree<A> tree; 
 	A a0 ("fred");
diff --git a/src/libCom/cxxTemplates/test/tsBTreeTest.cc b/src/libCom/cxxTemplates/test/tsBTreeTest.cc
index 64d263800..efee340fc 100644
--- a/src/libCom/cxxTemplates/test/tsBTreeTest.cc
+++ b/src/libCom/cxxTemplates/test/tsBTreeTest.cc
@@ -28,7 +28,7 @@ private:
 	const char *pName;
 };
 
-main ()
+int main ()
 {
 	tsBTree<A> tree; 
 	A a0 ("fred");