diff --git a/tecs/make_crv b/tecs/make_crv
index d549f53..2a93f78 100644
--- a/tecs/make_crv
+++ b/tecs/make_crv
@@ -215,9 +215,6 @@ $(CFGDIR)x29630.crv: ccrv $(SRC)inp/x29630.inp
 $(CFGDIR)x29746.crv: ccrv $(SRC)inp/x29746.inp
 	$Q -p$(CFGDIR)
 
-$(CFGDIR)x31254.crv: ccrv $(SRC)inp/x31254.inp
-	$Q -p$(CFGDIR)
-
 $(CFGDIR)x31317.crv: ccrv $(SRC)inp/x31317.inp
 	$Q -p$(CFGDIR)
 
@@ -306,7 +303,6 @@ all_crv: \
   $(CFGDIR)x24506.crv \
   $(CFGDIR)x29630.crv \
   $(CFGDIR)x29746.crv \
-  $(CFGDIR)x31254.crv \
   $(CFGDIR)x31317.crv \
   $(CFGDIR)x31318.crv \
   $(CFGDIR)x31319.crv \
@@ -386,7 +382,6 @@ ALLINP= \
   $(SRC)inp/x24506.inp \
   $(SRC)inp/x29630.inp \
   $(SRC)inp/x29746.inp \
-  $(SRC)inp/x31254.inp \
   $(SRC)inp/x31317.inp \
   $(SRC)inp/x31318.inp \
   $(SRC)inp/x31319.inp \