diff --git a/hardware/fx2lafw/fx2lafw.c b/hardware/fx2lafw/fx2lafw.c
index d88a20ce..ed95fd2b 100644
--- a/hardware/fx2lafw/fx2lafw.c
+++ b/hardware/fx2lafw/fx2lafw.c
@@ -577,7 +577,7 @@ static void abort_acquisition(struct context *ctx)
 	ctx->num_samples = -1;
 }
 
-void finish_acquisition(struct context *ctx)
+static void finish_acquisition(struct context *ctx)
 {
 	struct sr_datafeed_packet packet;
 	int i;