diff --git a/libjulia/backends/evm/EVMCodeTransform.h b/libjulia/backends/evm/EVMCodeTransform.h
index 9814f0f55..7824247ac 100644
--- a/libjulia/backends/evm/EVMCodeTransform.h
+++ b/libjulia/backends/evm/EVMCodeTransform.h
@@ -21,6 +21,7 @@
 #include <libjulia/backends/evm/EVMAssembly.h>
 
 #include <libsolidity/inlineasm/AsmScope.h>
+#include <libsolidity/inlineasm/AsmDataForward.h>
 
 #include <boost/variant.hpp>
 #include <boost/optional.hpp>
diff --git a/libsolidity/inlineasm/AsmAnalysis.h b/libsolidity/inlineasm/AsmAnalysis.h
index 5cdf72b1b..76d2eba1a 100644
--- a/libsolidity/inlineasm/AsmAnalysis.h
+++ b/libsolidity/inlineasm/AsmAnalysis.h
@@ -26,6 +26,8 @@
 
 #include <libjulia/backends/evm/AbstractAssembly.h>
 
+#include <libsolidity/inlineasm/AsmDataForward.h>
+
 #include <boost/variant.hpp>
 
 #include <functional>
@@ -39,21 +41,6 @@ class ErrorReporter;
 namespace assembly
 {
 
-struct Literal;
-struct Block;
-struct Label;
-struct FunctionalInstruction;
-struct Assignment;
-struct VariableDeclaration;
-struct Instruction;
-struct Identifier;
-struct StackAssignment;
-struct FunctionDefinition;
-struct FunctionCall;
-struct Switch;
-struct ForLoop;
-using Statement = boost::variant<Instruction, Literal, Label, StackAssignment, Identifier, Assignment, FunctionCall, FunctionalInstruction, VariableDeclaration, FunctionDefinition, Switch, Block, ForLoop>;
-
 struct AsmAnalysisInfo;
 
 /**
diff --git a/libsolidity/inlineasm/AsmAnalysisInfo.h b/libsolidity/inlineasm/AsmAnalysisInfo.h
index a75413a2f..bd3b28c4c 100644
--- a/libsolidity/inlineasm/AsmAnalysisInfo.h
+++ b/libsolidity/inlineasm/AsmAnalysisInfo.h
@@ -20,6 +20,8 @@
 
 #pragma once
 
+#include <libsolidity/inlineasm/AsmDataForward.h>
+
 #include <boost/variant.hpp>
 
 #include <map>
@@ -33,24 +35,8 @@ namespace solidity
 namespace assembly
 {
 
-struct Literal;
-struct Block;
-struct Label;
-struct FunctionalInstruction;
-struct Assignment;
-struct VariableDeclaration;
-struct Instruction;
-struct Identifier;
-struct StackAssignment;
-struct FunctionDefinition;
-struct FunctionCall;
-struct Switch;
-struct ForLoop;
-
 struct Scope;
 
-using Statement = boost::variant<Instruction, Literal, Label, StackAssignment, Identifier, Assignment, FunctionCall, FunctionalInstruction, VariableDeclaration, FunctionDefinition, Switch, ForLoop, Block>;
-
 struct AsmAnalysisInfo
 {
 	using StackHeightInfo = std::map<void const*, int>;
diff --git a/libsolidity/inlineasm/AsmData.h b/libsolidity/inlineasm/AsmData.h
index c2458bd78..db5840bc9 100644
--- a/libsolidity/inlineasm/AsmData.h
+++ b/libsolidity/inlineasm/AsmData.h
@@ -22,10 +22,13 @@
 
 #pragma once
 
-#include <boost/variant.hpp>
+#include <libsolidity/inlineasm/AsmDataForward.h>
+
 #include <libevmasm/Instruction.h>
 #include <libevmasm/SourceLocation.h>
 
+#include <boost/variant.hpp>
+
 namespace dev
 {
 namespace solidity
@@ -38,24 +41,6 @@ using Type = std::string;
 struct TypedName { SourceLocation location; std::string name; Type type; };
 using TypedNameList = std::vector<TypedName>;
 
-/// What follows are the AST nodes for assembly.
-
-struct Instruction;
-struct Literal;
-struct Label;
-struct StackAssignment;
-struct Identifier;
-struct Assignment;
-struct VariableDeclaration;
-struct FunctionalInstruction;
-struct FunctionDefinition;
-struct FunctionCall;
-struct Switch;
-struct ForLoop;
-struct Block;
-
-using Statement = boost::variant<Instruction, Literal, Label, StackAssignment, Identifier, Assignment, FunctionCall, FunctionalInstruction, VariableDeclaration, FunctionDefinition, Switch, ForLoop, Block>;
-
 /// Direct EVM instruction (except PUSHi and JUMPDEST)
 struct Instruction { SourceLocation location; solidity::Instruction instruction; };
 /// Literal number or string (up to 32 bytes)
diff --git a/libsolidity/inlineasm/AsmDataForward.h b/libsolidity/inlineasm/AsmDataForward.h
new file mode 100644
index 000000000..4ead7ff52
--- /dev/null
+++ b/libsolidity/inlineasm/AsmDataForward.h
@@ -0,0 +1,52 @@
+/*
+	This file is part of solidity.
+
+	solidity is free software: you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation, either version 3 of the License, or
+	(at your option) any later version.
+
+	solidity is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with solidity.  If not, see <http://www.gnu.org/licenses/>.
+*/
+/**
+ * @author Christian <c@ethdev.com>
+ * @date 2016
+ * Forward declaration of classes for inline assembly / JULIA AST
+ */
+
+#pragma once
+
+#include <boost/variant.hpp>
+
+namespace dev
+{
+namespace solidity
+{
+namespace assembly
+{
+
+struct Instruction;
+struct Literal;
+struct Label;
+struct StackAssignment;
+struct Identifier;
+struct Assignment;
+struct VariableDeclaration;
+struct FunctionalInstruction;
+struct FunctionDefinition;
+struct FunctionCall;
+struct Switch;
+struct ForLoop;
+struct Block;
+
+using Statement = boost::variant<Instruction, Literal, Label, StackAssignment, Identifier, Assignment, FunctionCall, FunctionalInstruction, VariableDeclaration, FunctionDefinition, Switch, ForLoop, Block>;
+
+}
+}
+}
diff --git a/libsolidity/inlineasm/AsmPrinter.h b/libsolidity/inlineasm/AsmPrinter.h
index 8808b0587..f57dddc85 100644
--- a/libsolidity/inlineasm/AsmPrinter.h
+++ b/libsolidity/inlineasm/AsmPrinter.h
@@ -22,6 +22,8 @@
 
 #pragma once
 
+#include <libsolidity/inlineasm/AsmDataForward.h>
+
 #include <boost/variant.hpp>
 
 namespace dev
@@ -30,19 +32,6 @@ namespace solidity
 {
 namespace assembly
 {
-struct Instruction;
-struct Literal;
-struct Identifier;
-struct FunctionalInstruction;
-struct Label;
-struct StackAssignment;
-struct Assignment;
-struct VariableDeclaration;
-struct FunctionDefinition;
-struct FunctionCall;
-struct Switch;
-struct ForLoop;
-struct Block;
 
 class AsmPrinter: public boost::static_visitor<std::string>
 {
diff --git a/libsolidity/inlineasm/AsmScopeFiller.h b/libsolidity/inlineasm/AsmScopeFiller.h
index f04352c95..80c03d2c8 100644
--- a/libsolidity/inlineasm/AsmScopeFiller.h
+++ b/libsolidity/inlineasm/AsmScopeFiller.h
@@ -20,6 +20,8 @@
 
 #pragma once
 
+#include <libsolidity/inlineasm/AsmDataForward.h>
+
 #include <boost/variant.hpp>
 
 #include <functional>
@@ -35,20 +37,6 @@ namespace assembly
 {
 
 struct TypedName;
-struct Literal;
-struct Block;
-struct Label;
-struct FunctionalInstruction;
-struct Assignment;
-struct VariableDeclaration;
-struct Instruction;
-struct Identifier;
-struct StackAssignment;
-struct FunctionDefinition;
-struct FunctionCall;
-struct Switch;
-struct ForLoop;
-
 struct Scope;
 struct AsmAnalysisInfo;