diff --git a/src/core/errors.go b/src/core/errors.go
index f6226a1..db5775b 100644
--- a/src/core/errors.go
+++ b/src/core/errors.go
@@ -9,11 +9,11 @@ import (
 var (
 	InvalidCondition       = errors.String("Invalid condition")
 	InvalidExpression      = errors.String("Invalid expression")
+	InvalidFieldInit       = errors.String("Invalid field initialization (expected 'field: value')")
 	InvalidLoopHeader      = errors.String("Invalid loop header")
 	InvalidNumber          = errors.String("Invalid number")
 	InvalidRune            = errors.String("Invalid rune")
 	InvalidStructOperation = errors.String("Invalid operation on structs")
-	MissingFieldName       = errors.String("Missing field name in struct initialization")
 	MissingOperand         = errors.String("Missing operand")
 )
 
diff --git a/src/core/errors_test.go b/src/core/errors_test.go
index 2f46235..b85c3e1 100644
--- a/src/core/errors_test.go
+++ b/src/core/errors_test.go
@@ -20,6 +20,8 @@ var errs = []struct {
 	{"InvalidExpression2.q", core.InvalidExpression},
 	{"InvalidExpression3.q", core.InvalidExpression},
 	{"InvalidExpression4.q", core.InvalidExpression},
+	{"InvalidFieldInit.q", core.InvalidFieldInit},
+	{"InvalidFieldInit2.q", core.InvalidFieldInit},
 	{"InvalidLoopHeader.q", core.InvalidLoopHeader},
 	{"InvalidStructOperation.q", core.InvalidStructOperation},
 	{"InvalidStructOperation2.q", core.InvalidStructOperation},
diff --git a/src/core/evaluateStruct.go b/src/core/evaluateStruct.go
index 273edf7..f7faa3c 100644
--- a/src/core/evaluateStruct.go
+++ b/src/core/evaluateStruct.go
@@ -18,8 +18,8 @@ func (f *Function) evaluateStruct(expr *expression.Expression) (ssa.Value, error
 	}
 
 	for _, definition := range expr.Children[1:] {
-		if definition.IsLeaf() {
-			return nil, errors.New(MissingFieldName, f.File, definition.Source().StartPos)
+		if len(definition.Children) != 2 {
+			return nil, errors.New(InvalidFieldInit, f.File, definition.Source().StartPos)
 		}
 
 		left := definition.Children[0]
diff --git a/src/core/testdata/MissingFieldName.q b/src/core/testdata/InvalidFieldInit.q
similarity index 100%
rename from src/core/testdata/MissingFieldName.q
rename to src/core/testdata/InvalidFieldInit.q
diff --git a/src/core/testdata/InvalidFieldInit2.q b/src/core/testdata/InvalidFieldInit2.q
new file mode 100644
index 0000000..4f741df
--- /dev/null
+++ b/src/core/testdata/InvalidFieldInit2.q
@@ -0,0 +1,8 @@
+Point {
+	x int
+	y int
+}
+
+main() {
+	p := Point{x 1, y 2}
+}
\ No newline at end of file