diff --git a/duchain/builders/declarationbuilder.h b/duchain/builders/declarationbuilder.h
--- a/duchain/builders/declarationbuilder.h
+++ b/duchain/builders/declarationbuilder.h
@@ -54,6 +54,7 @@
     virtual void visitSwitchStmt(go::SwitchStmtAst* node);
     virtual void visitTypeCaseClause(go::TypeCaseClauseAst* node);
     virtual void visitExprCaseClause(go::ExprCaseClauseAst* node);
+    virtual void visitPrimaryExpr(go::PrimaryExprAst *node);
 
     /**
      * this handles variable declaration in select statements, e.g.
diff --git a/duchain/builders/declarationbuilder.cpp b/duchain/builders/declarationbuilder.cpp
--- a/duchain/builders/declarationbuilder.cpp
+++ b/duchain/builders/declarationbuilder.cpp
@@ -254,6 +254,18 @@
     closeContext(); //body wrapper context
 }
 
+void DeclarationBuilder::visitPrimaryExpr(go::PrimaryExprAst *node)
+{
+    if(node->signature && !node->convArg) // func type literal and not conversion.
+    {
+        buildFunction(node->signature, node->body);
+    }
+    else
+    {
+        go::DefaultVisitor::visitPrimaryExpr(node);
+    }
+}
+
 void DeclarationBuilder::visitMethodDeclaration(go::MethodDeclarationAst* node)
 {
     Declaration* declaration=0;
diff --git a/duchain/tests/testduchain.h b/duchain/tests/testduchain.h
--- a/duchain/tests/testduchain.h
+++ b/duchain/tests/testduchain.h
@@ -48,7 +48,8 @@
     void test_unaryOps();
     void test_typeAssertions();
     void test_selectCases();
+    void test_declareVariablesInParametersOfNestedFunction();
 };
 
 
 #endif
\ No newline at end of file
diff --git a/duchain/tests/testduchain.cpp b/duchain/tests/testduchain.cpp
--- a/duchain/tests/testduchain.cpp
+++ b/duchain/tests/testduchain.cpp
@@ -167,6 +167,34 @@
     QCOMPARE(declarations.size(), 0);
 }
 
+void TestDuchain::test_declareVariablesInParametersOfNestedFunction()
+{
+    QString code("package main; func main() {\n"
+                         "a := func(test1 int) { return test1 }\n"
+                         "func(test2 int) { return test2 } (5)\n"
+                         "pass(func(test3 int) {return test3 })\n}\n");
+    auto mainContext = getMainContext(code);
+    DUChainReadLocker lock;
+
+    auto firstFunctionContext = mainContext->childContexts().at(0);
+    auto declarations = firstFunctionContext->findDeclarations(QualifiedIdentifier("test1"));
+    QCOMPARE(declarations.size(), 1);
+    auto declaration = declarations.first();
+    QCOMPARE(fastCast<go::GoIntegralType*>(declaration->abstractType().constData())->dataType(), uint(go::GoIntegralType::TypeInt));
+
+    auto secondFunctionContext = mainContext->childContexts().at(2);
+    declarations = secondFunctionContext->findDeclarations(QualifiedIdentifier("test2"));
+    QCOMPARE(declarations.size(), 1);
+    declaration = declarations.first();
+    QCOMPARE(fastCast<go::GoIntegralType*>(declaration->abstractType().constData())->dataType(), uint(go::GoIntegralType::TypeInt));
+
+    auto thirdFunctionContext = mainContext->childContexts().at(4);
+    declarations = thirdFunctionContext->findDeclarations(QualifiedIdentifier("test3"));
+    QCOMPARE(declarations.size(), 1);
+    declaration = declarations.first();
+    QCOMPARE(fastCast<go::GoIntegralType*>(declaration->abstractType().constData())->dataType(), uint(go::GoIntegralType::TypeInt));
+}
+
 void TestDuchain::test_constants()
 {
     QString code("package main; const const1, const2 float32 = 1, 2; const ( const3, const4, const5 = 'a', 3, \"abc\"; ); ");