diff --git a/fpga/rtl/puzzlefw_pkg.vhd b/fpga/rtl/puzzlefw_pkg.vhd
index 70534ce..acdc623 100644
--- a/fpga/rtl/puzzlefw_pkg.vhd
+++ b/fpga/rtl/puzzlefw_pkg.vhd
@@ -96,7 +96,7 @@ package puzzlefw_pkg is
     -- Firmware info word.
     constant fw_api_version:        natural := 1;
     constant fw_version_major:      natural := 0;
-    constant fw_version_minor:      natural := 14;
+    constant fw_version_minor:      natural := 15;
     constant fw_info_word:          std_logic_vector(31 downto 0) :=
         x"4a"
         & std_logic_vector(to_unsigned(fw_api_version, 8))
diff --git a/fpga/rtl/puzzlefw_top_4ch.vhd b/fpga/rtl/puzzlefw_top_4ch.vhd
index 17bcfc9..f8dd2a7 100644
--- a/fpga/rtl/puzzlefw_top_4ch.vhd
+++ b/fpga/rtl/puzzlefw_top_4ch.vhd
@@ -477,7 +477,7 @@ begin
     inst_acq_dma: entity work.dma_write_channel
         generic map (
             transfer_size_bits  => 4,
-            queue_size_bits     => 14,
+            queue_size_bits     => 15,
             idle_timeout        => 256 )
         port map (
             clk                 => clk_adc,