diff --git a/src/Mod/Fem/FemInputWriterCcx.py b/src/Mod/Fem/FemInputWriterCcx.py
index 4ab0b71a27..7b78c416de 100644
--- a/src/Mod/Fem/FemInputWriterCcx.py
+++ b/src/Mod/Fem/FemInputWriterCcx.py
@@ -357,7 +357,7 @@ class FemInputWriterCcx(FemInputWriter.FemInputWriter):
                 self.get_ccx_elsets_multiple_mat_single_beam()
             elif self.beamsection_objects and len(self.beamsection_objects) > 1:         # multiple mats, multiple beams
                 self.get_ccx_elsets_multiple_mat_multiple_beam()
-            if self.fluidsection_objects and len(self.fluidsection_objects) == 1:        # multiple mats, single fluid
+            elif self.fluidsection_objects and len(self.fluidsection_objects) == 1:      # multiple mats, single fluid
                 self.get_ccx_elsets_multiple_mat_single_fluid()
             elif self.fluidsection_objects and len(self.fluidsection_objects) > 1:       # multiple mats, multiple fluids
                 self.get_ccx_elsets_multiple_mat_multiple_fluid()