diff --git a/libevmasm/Assembly.cpp b/libevmasm/Assembly.cpp
index a402be300d84..652ccb28cc3b 100644
--- a/libevmasm/Assembly.cpp
+++ b/libevmasm/Assembly.cpp
@@ -1410,7 +1410,11 @@ LinkerObject const& Assembly::assembleEOF() const
 			switch (item.type())
 			{
 			case Operation:
-				solAssert(item.instruction() != Instruction::DATALOADN);
+				solAssert(
+					item.instruction() != Instruction::DATALOADN &&
+					item.instruction() != Instruction::RETURNCONTRACT &&
+					item.instruction() != Instruction::EOFCREATE
+				);
 				solAssert(!(item.instruction() >= Instruction::PUSH0 && item.instruction() <= Instruction::PUSH32));
 				ret.bytecode += assembleOperation(item);
 				break;
diff --git a/libevmasm/AssemblyItem.h b/libevmasm/AssemblyItem.h
index b613d07a5a9d..5513ad67e127 100644
--- a/libevmasm/AssemblyItem.h
+++ b/libevmasm/AssemblyItem.h
@@ -55,7 +55,7 @@ enum AssemblyItemType
 	/// Loads 32 bytes from static auxiliary data of EOF data section. The offset does *not* have to be always from the beginning
 	/// of the data EOF section. More details here: https://github.com/ipsilon/eof/blob/main/spec/eof.md#data-section-lifecycle
 	AuxDataLoadN,
-	EofCreate, /// Creates new contract using subcointainer as initcode
+	EofCreate, /// Creates new contract using subcontainer as initcode
 	ReturnContract, /// Returns new container along (with auxiliary data section) to be deployed
 	VerbatimBytecode ///< Contains data that is inserted into the bytecode code section without modification.
 };