diff --git a/kmath-common/src/test/kotlin/scientifik/kmath/expressions/FieldExpressionContextTest.kt b/kmath-common/src/test/kotlin/scientifik/kmath/expressions/FieldExpressionContextTest.kt
index 3d68a4674..dda267ec8 100644
--- a/kmath-common/src/test/kotlin/scientifik/kmath/expressions/FieldExpressionContextTest.kt
+++ b/kmath-common/src/test/kotlin/scientifik/kmath/expressions/FieldExpressionContextTest.kt
@@ -1,5 +1,7 @@
 package scientifik.kmath.expressions
 
+import scientifik.kmath.operations.Complex
+import scientifik.kmath.operations.ComplexField
 import scientifik.kmath.operations.DoubleField
 import kotlin.test.Test
 import kotlin.test.assertEquals
@@ -15,4 +17,15 @@ class FieldExpressionContextTest {
         assertEquals(expression("x" to 1.0), 4.0)
         assertEquals(expression(), 9.0)
     }
+
+    @Test
+    fun testComplex() {
+        val context = FieldExpressionContext(ComplexField)
+        val expression = with(context) {
+            val x = variable("x", Complex(2.0, 0.0))
+            x * x + 2 * x + 1.0
+        }
+        assertEquals(expression("x" to Complex(1.0, 0.0)), Complex(4.0, 0.0))
+        assertEquals(expression(), Complex(9.0, 0.0))
+    }
 }
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