diff --git a/panda/src/sgattrib/composite1.cxx b/panda/src/sgattrib/sgattrib_composite1.cxx
similarity index 100%
rename from panda/src/sgattrib/composite1.cxx
rename to panda/src/sgattrib/sgattrib_composite1.cxx
diff --git a/panda/src/sgattrib/composite2.cxx b/panda/src/sgattrib/sgattrib_composite2.cxx
similarity index 100%
rename from panda/src/sgattrib/composite2.cxx
rename to panda/src/sgattrib/sgattrib_composite2.cxx
diff --git a/panda/src/sgattrib/composite3.cxx b/panda/src/sgattrib/sgattrib_composite3.cxx
similarity index 100%
rename from panda/src/sgattrib/composite3.cxx
rename to panda/src/sgattrib/sgattrib_composite3.cxx