diff --git a/pgpainless-core/src/test/kotlin/org/pgpainless/bouncycastle/fuzzing/PGPObjectFactoryFuzzingTest.kt b/pgpainless-core/src/test/kotlin/org/pgpainless/bouncycastle/fuzzing/PGPObjectFactoryFuzzingTest.kt
index c8504591..05216f44 100644
--- a/pgpainless-core/src/test/kotlin/org/pgpainless/bouncycastle/fuzzing/PGPObjectFactoryFuzzingTest.kt
+++ b/pgpainless-core/src/test/kotlin/org/pgpainless/bouncycastle/fuzzing/PGPObjectFactoryFuzzingTest.kt
@@ -41,7 +41,7 @@ class PGPObjectFactoryFuzzingTest {
         } catch (e: UnsupportedPacketVersionException) {
             return
         } catch (e: ClassCastException) {
-            if (e.message?.contains("SecretSubkeyPacket") ?: true) {
+            if (e.message?.contains("SecretSubkeyPacket") != false) {
                 return
             }
             throw e