diff --git a/rust-bindings/src/lib.rs b/rust-bindings/src/lib.rs
index 3556c15a..d788a683 100644
--- a/rust-bindings/src/lib.rs
+++ b/rust-bindings/src/lib.rs
@@ -198,7 +198,7 @@ fn schema_display_aux(schema: &[u8], schema_version: Option<u8>) -> Result<Vec<u
 
 #[derive(Error, Debug)]
 pub enum FFIError {
-    #[error("{}", 0)]
+    #[error("{0}")]
     JsonError(String),
     #[error("error when using serde")]
     SerdeJsonError,
diff --git a/tests/UnitTests/Interop/InteropBindingTests.cs b/tests/UnitTests/Interop/InteropBindingTests.cs
index 3e74e151..82db4fb4 100644
--- a/tests/UnitTests/Interop/InteropBindingTests.cs
+++ b/tests/UnitTests/Interop/InteropBindingTests.cs
@@ -58,7 +58,9 @@ public async Task GivenBadSchema_WhenSchemaDisplay_ThenThrowExceptionWithParseEr
 
         // Assert
         action.Should().Throw<InteropBindingException>()
-            .Where(e => e.Result == Result.VersionedSchemaErrorParseError);
+            .Where(e =>
+                e.Result == Result.VersionedSchemaErrorParseError &&
+                e.Message.Equals("Parse error", StringComparison.Ordinal));
     }
 
     [Fact]
@@ -101,7 +103,9 @@ public async Task GivenBadReceiveParam_WhenDisplayReceiveParam_ThenThrowExceptio
 
         // Assert
         action.Should().Throw<InteropBindingException>()
-            .Where(e => e.Result == Result.NoError);
+            .Where(e =>
+                e.Result == Result.JsonError &&
+                e.Message.StartsWith("Failed to deserialize AccountAddress due to: Could not parse AccountAddress"));
     }
 
     [Fact]