diff --git a/opal/mca/btl/usnic/Makefile.am b/opal/mca/btl/usnic/Makefile.am
index 902d4dddc3..3f38e8fc7d 100644
--- a/opal/mca/btl/usnic/Makefile.am
+++ b/opal/mca/btl/usnic/Makefile.am
@@ -49,6 +49,7 @@ sources = \
     btl_usnic_frag.h \
     btl_usnic_graph.h \
     btl_usnic_graph.c \
+    btl_usnic_hwloc.c \
     btl_usnic_hwloc.h \
     btl_usnic_map.c \
     btl_usnic_mca.c \
@@ -64,8 +65,7 @@ sources = \
     btl_usnic_util.h \
     btl_usnic_test.c \
     btl_usnic_test.h \
-    $(test_sources) \
-    btl_usnic_hwloc.c
+    $(test_sources)
 
 # Make the output library in this directory, and name it either
 # mca_<type>_<name>.la (for DSO builds) or libmca_<type>_<name>.la