diff --git a/implementations/C/convert_defs.py b/implementations/C/convert_defs.py
index fd5f1bf..a5bad64 100644
--- a/implementations/C/convert_defs.py
+++ b/implementations/C/convert_defs.py
@@ -29,7 +29,6 @@ b [i] dip i
 binary unary popd
 ccccons ccons ccons
 ccons cons cons
-clear [] swaack pop
 cleave fork popdd
 clop cleave popdd
 cmp [[>] swap] dipd [ifte] ccons [=] swons ifte