diff --git a/ethcore/wasm/src/runtime.rs b/ethcore/wasm/src/runtime.rs
index 3dfaffad0..3c2bd101e 100644
--- a/ethcore/wasm/src/runtime.rs
+++ b/ethcore/wasm/src/runtime.rs
@@ -627,30 +627,30 @@ impl<'a, 'b> Runtime<'a, 'b> {
 	fn user_panic(&mut self, context: InterpreterCallerContext)
 		-> Result<Option<interpreter::RuntimeValue>, InterpreterError>
 	{
-        let payload_len = context.value_stack.pop_as::<i32>()? as u32;
-        let payload_ptr = context.value_stack.pop_as::<i32>()? as u32;
+		let payload_len = context.value_stack.pop_as::<i32>()? as u32;
+		let payload_ptr = context.value_stack.pop_as::<i32>()? as u32;
 
-        let raw_payload = self.memory.get(payload_ptr, payload_len as usize)?;
-        let payload = panic_payload::decode(&raw_payload);
-        let msg = format!(
-            "{msg}, {file}:{line}:{col}",
-            msg = payload
-                .msg
-                .as_ref()
-                .map(String::as_ref)
-                .unwrap_or("<msg was stripped>"),
-            file = payload
-                .file
-                .as_ref()
-                .map(String::as_ref)
-                .unwrap_or("<unknown>"),
-            line = payload.line.unwrap_or(0),
-            col = payload.col.unwrap_or(0)
-        );
-        trace!(target: "wasm", "Contract custom panic message: {}", msg);
+		let raw_payload = self.memory.get(payload_ptr, payload_len as usize)?;
+		let payload = panic_payload::decode(&raw_payload);
+		let msg = format!(
+			"{msg}, {file}:{line}:{col}",
+			msg = payload
+				.msg
+				.as_ref()
+				.map(String::as_ref)
+				.unwrap_or("<msg was stripped>"),
+			file = payload
+				.file
+				.as_ref()
+				.map(String::as_ref)
+				.unwrap_or("<unknown>"),
+			line = payload.line.unwrap_or(0),
+			col = payload.col.unwrap_or(0)
+		);
+		trace!(target: "wasm", "Contract custom panic message: {}", msg);
 
-        Err(UserTrap::Panic(msg).into())
-    }
+		Err(UserTrap::Panic(msg).into())
+	}
 
 	fn block_hash(&mut self, context: InterpreterCallerContext)
 		-> Result<Option<interpreter::RuntimeValue>, InterpreterError>