diff --git a/target/linux/ipq806x/patches-3.18/114-pcie-add-ctlr-init.patch b/target/linux/ipq806x/patches-3.18/114-pcie-add-ctlr-init.patch
index 11c9810fe2..c0b65c712b 100644
--- a/target/linux/ipq806x/patches-3.18/114-pcie-add-ctlr-init.patch
+++ b/target/linux/ipq806x/patches-3.18/114-pcie-add-ctlr-init.patch
@@ -229,8 +229,8 @@
 +	writel(upper_32_bits(pp->mem_bus_addr),
 +	       pcie->dbi + PCIE20_PLR_IATU_UTAR);
 +
-+	/* 1K PCIE buffer setting */
-+	writel(0x3, pcie->dbi + PCIE20_AXI_MSTR_RESP_COMP_CTRL0);
++	/* 256B PCIE buffer setting */
++	writel(0x1, pcie->dbi + PCIE20_AXI_MSTR_RESP_COMP_CTRL0);
 +	writel(0x1, pcie->dbi + PCIE20_AXI_MSTR_RESP_COMP_CTRL1);
 +}
 +
diff --git a/target/linux/ipq806x/patches-4.1/114-pcie-add-ctlr-init.patch b/target/linux/ipq806x/patches-4.1/114-pcie-add-ctlr-init.patch
index 11c9810fe2..c0b65c712b 100644
--- a/target/linux/ipq806x/patches-4.1/114-pcie-add-ctlr-init.patch
+++ b/target/linux/ipq806x/patches-4.1/114-pcie-add-ctlr-init.patch
@@ -229,8 +229,8 @@
 +	writel(upper_32_bits(pp->mem_bus_addr),
 +	       pcie->dbi + PCIE20_PLR_IATU_UTAR);
 +
-+	/* 1K PCIE buffer setting */
-+	writel(0x3, pcie->dbi + PCIE20_AXI_MSTR_RESP_COMP_CTRL0);
++	/* 256B PCIE buffer setting */
++	writel(0x1, pcie->dbi + PCIE20_AXI_MSTR_RESP_COMP_CTRL0);
 +	writel(0x1, pcie->dbi + PCIE20_AXI_MSTR_RESP_COMP_CTRL1);
 +}
 +