A coworker took credit for my idea: what should I do?
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In short
Talk to your coworker one-on-one first, calmly and with facts, before going to anyone else. Then get into the habit of putting your ideas in writing (an email, a shared note) so no one can take them from you again.
Both sides
On Tuesday, by the coffee machine, I suggested to Julien that we replace our client newsletter with a short monthly video. On Monday, he presented that exact idea in the team meeting, and our manager praised him in front of everyone. He didn't mention my name once. I posted in the team channel that I was 'glad my coffee machine idea went down so well'. It was a bit snarky, I admit, but I didn't know how else to say it.
Yes, we talked about it, but it was just one passing comment. I spent my whole weekend building the mock-up, costing it and finding examples. In the meeting I said 'we've been thinking about this', and to me that included her. If she'd told me it bothered her, I would have set the record straight right away. Instead, she made me look like a thief in front of the whole team.
The verdict
On the substance, Aïcha is mostly right. The original idea was hers, and Julien knew it. A vague 'we' isn't enough: everyone in the room assumed the idea was his, and he said nothing when the manager congratulated him. Developing an idea is valuable work, but it doesn't replace giving credit to where it came from.
On the method, Aïcha got it wrong. A sarcastic post in the team channel puts Julien on trial in public without giving him a chance to explain. The conflict escalates, and she risks looking oversensitive when she actually had a fair point.
Julien's work is real and deserves recognition too. What was missing on both sides was a private conversation before things went public.
The compromise
Tomorrow, Julien sends a short message to the manager and the team making it clear the idea came from Aïcha and that they'll lead the project together. Aïcha tells him face to face that her sarcastic post was clumsy. From now on, they both follow up coffee machine ideas with a quick email.
Who do you think is right?
Pick a side.
Frequently asked questions
Should I go to my manager?
Not first. Start with a one-on-one conversation with the coworker involved. If nothing changes or it keeps happening, talk to your manager using specific facts rather than accusations.
How can I prove an idea was mine?
The easiest way is to leave a written trail: an email, a dated note, a shared document. After an informal chat, a quick recap such as 'following our conversation, here's my idea' is often enough.
How do I react if it happens in the middle of a meeting?
Stay calm and step in positively, for example: 'Glad the idea I mentioned to you is landing well, can I add one point?' You make it clear the idea is yours without attacking anyone.
What if it was just a misunderstanding?
That happens a lot, since many ideas take shape in conversation. Ask your coworker for their side before deciding they meant to take your credit.
What if this coworker does it again?
Share your ideas directly in meetings or in writing, with your manager copied in. If it keeps happening anyway, raise it with your manager or HR.
Guide Workplace disputes: the guide
Written with the help of AI · This is not legal advice. How Who's Right decides






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