diff --git a/include/libcamera/internal/egl.h b/include/libcamera/internal/egl.h
index 0ad2320b1..0ec8ea6ec 100644
--- a/include/libcamera/internal/egl.h
+++ b/include/libcamera/internal/egl.h
@@ -119,6 +119,7 @@ public:
 	void useProgram(GLuint programId);
 	void deleteProgram(GLuint programId);
 	void syncOutput();
+	void flushOutput();
 
 private:
 	LIBCAMERA_DISABLE_COPY_AND_MOVE(eGL)
diff --git a/src/libcamera/egl.cpp b/src/libcamera/egl.cpp
index d9bc4f555..19ae92305 100644
--- a/src/libcamera/egl.cpp
+++ b/src/libcamera/egl.cpp
@@ -94,10 +94,22 @@ void eGL::syncOutput()
 {
 	ASSERT(tid_ == Thread::currentId());
 
-	glFlush();
 	glFinish();
 }
 
+/**
+ * \brief Flush the rendering pipeline
+ *
+ * Calls glFlush().
+ *
+ */
+void eGL::flushOutput()
+{
+	ASSERT(tid_ == Thread::currentId());
+
+	glFlush();
+}
+
 /**
  * \brief Create a DMA-BUF backed 2D texture
  * \param[in,out] eglImage EGL image to associate with the DMA-BUF
diff --git a/src/libcamera/software_isp/debayer_egl.cpp b/src/libcamera/software_isp/debayer_egl.cpp
index ed9a68013..7b9e02d90 100644
--- a/src/libcamera/software_isp/debayer_egl.cpp
+++ b/src/libcamera/software_isp/debayer_egl.cpp
@@ -521,7 +521,7 @@ int DebayerEGL::debayerGPU(MappedFrameBuffer &in, int out_fd, const DebayerParam
 		LOG(eGL, Error) << "Drawing scene fail " << err;
 		return -ENODEV;
 	} else {
-		egl_.syncOutput();
+		egl_.flushOutput();
 	}
 
 	return 0;
@@ -558,6 +558,7 @@ void DebayerEGL::process(uint32_t frame, FrameBuffer *input, FrameBuffer *output
 	stats_->processFrame(frame, 0, input);
 	dmaSyncers.clear();
 
+	egl_.syncOutput();
 	bench_.finishFrame();
 
 	outputBufferReady.emit(output);