diff --git a/libs/etterlatte-beregning-model/src/test/kotlin/ProsentTest.kt b/libs/etterlatte-beregning-model/src/test/kotlin/ProsentTest.kt
index 3ee8de97013..13c870ba13a 100644
--- a/libs/etterlatte-beregning-model/src/test/kotlin/ProsentTest.kt
+++ b/libs/etterlatte-beregning-model/src/test/kotlin/ProsentTest.kt
@@ -1,5 +1,6 @@
 
 import no.nav.etterlatte.beregning.grunnlag.Prosent
+import no.nav.etterlatte.libs.common.feilhaandtering.InternfeilException
 import org.junit.jupiter.api.Assertions
 import org.junit.jupiter.api.Test
 import org.junit.jupiter.api.assertThrows
@@ -17,11 +18,11 @@ class ProsentTest {
 
     @Test
     fun `stoetter ikke negativ prosent`() {
-        assertThrows<IllegalArgumentException> { Prosent(-1) }
+        assertThrows<InternfeilException> { Prosent(-1) }
     }
 
     @Test
     fun `stoetter ikke prosent over 100`() {
-        assertThrows<IllegalArgumentException> { Prosent(101) }
+        assertThrows<InternfeilException> { Prosent(101) }
     }
 }