diff --git a/Libraries/Core/Devtools/parseErrorStack.js b/Libraries/Core/Devtools/parseErrorStack.js
index 573fbd1449d..bd2ef9a9d85 100644
--- a/Libraries/Core/Devtools/parseErrorStack.js
+++ b/Libraries/Core/Devtools/parseErrorStack.js
@@ -12,9 +12,10 @@
 'use strict';
 
 export type StackFrame = {
+  column: ?number,
   file: string,
   lineNumber: number,
-  column: number,
+  methodName: string,
 };
 
 var stacktraceParser = require('stacktrace-parser');
diff --git a/Libraries/Core/Timers/JSTimers.js b/Libraries/Core/Timers/JSTimers.js
index c89a6695b2a..842b47ba545 100644
--- a/Libraries/Core/Timers/JSTimers.js
+++ b/Libraries/Core/Timers/JSTimers.js
@@ -40,8 +40,6 @@ function _allocateCallback(func: Function, type: JSTimerType): number {
     e.framesToPop = 1;
     const stack = parseErrorStack(e);
     if (stack) {
-      /* $FlowFixMe(>=0.32.0) - this seems to be putting something of the wrong
-       * type into identifiers */
       JSTimersExecution.identifiers[freeIndex] = stack.shift();
     }
   }