diff --git a/identity-android/src/main/java/com/android/identity/android/securearea/AndroidKeystoreSecureArea.java b/identity-android/src/main/java/com/android/identity/android/securearea/AndroidKeystoreSecureArea.java
index cd24f54b0..e8a9c383a 100644
--- a/identity-android/src/main/java/com/android/identity/android/securearea/AndroidKeystoreSecureArea.java
+++ b/identity-android/src/main/java/com/android/identity/android/securearea/AndroidKeystoreSecureArea.java
@@ -444,7 +444,7 @@ static String getSignatureAlgorithmName(@Algorithm int signatureAlgorithm) {
             }
             throw new IllegalStateException(e.getMessage(), e);
         } catch (InvalidKeyException e) {
-            throw new IllegalArgumentException("Key does not have purpose KEY_PURPOSE_SIGN", e);
+            throw new IllegalArgumentException(e);
         }
     }
 
@@ -484,7 +484,7 @@ static String getSignatureAlgorithmName(@Algorithm int signatureAlgorithm) {
             }
             throw new IllegalStateException(e.getMessage(), e);
         } catch (InvalidKeyException e) {
-            throw new IllegalArgumentException("Key does not have purpose KEY_PURPOSE_AGREE_KEY", e);
+            throw new IllegalArgumentException(e);
         }
     }