diff --git a/src/libcamera/pipeline/ipu3/ipu3.cpp b/src/libcamera/pipeline/ipu3/ipu3.cpp
index c27fe755..827906d5 100644
--- a/src/libcamera/pipeline/ipu3/ipu3.cpp
+++ b/src/libcamera/pipeline/ipu3/ipu3.cpp
@@ -122,7 +122,7 @@ public:
 	BufferPool *exportBuffers();
 	void freeBuffers();
 
-	int start(std::vector<std::unique_ptr<Buffer>> *buffer);
+	int start(std::vector<std::unique_ptr<Buffer>> *buffers);
 	int stop();
 
 	static int mediaBusToFormat(unsigned int code);