diff --git a/openpower/patches/mihawk-patches/occ/occ-0001-Modify-modify-amec-power-sensor-calculation.patch b/openpower/patches/mihawk-patches/occ/occ-0001-Modify-modify-amec-power-sensor-calculation.patch
new file mode 100644
index 0000000..7f94247
--- /dev/null
+++ b/openpower/patches/mihawk-patches/occ/occ-0001-Modify-modify-amec-power-sensor-calculation.patch
@@ -0,0 +1,45 @@
+From d614a89e71564d8d300e25fb76c5a4553fe35876 Mon Sep 17 00:00:00 2001
+From: joy_chu <joy_chu@wistron.com>
+Date: Mon, 22 Jul 2019 18:57:17 +0800
+Subject: [PATCH] Modify: modify amec power sensor calculation
+
+The offset value will be added to APSS raw value when APSS raw value is not 0.
+
+Signed-off-by: joy_chu <joy_chu@wistron.com>
+---
+ src/occ_405/amec/amec_sensors_power.c | 18 +++++++++++-------
+ 1 file changed, 11 insertions(+), 7 deletions(-)
+
+diff --git a/src/occ_405/amec/amec_sensors_power.c b/src/occ_405/amec/amec_sensors_power.c
+index 5c0ec54..2612598 100755
+--- a/src/occ_405/amec/amec_sensors_power.c
++++ b/src/occ_405/amec/amec_sensors_power.c
+@@ -173,14 +173,18 @@ uint32_t amec_value_from_apss_adc(uint8_t i_chan)
+         // Read Raw Value in mA (divide masked channel data by 2)
+         l_raw = (G_dcom_slv_inbox_rx.adc[i_chan] & APSS_12BIT_ADC_MASK)/2;
+         // Apply offset and gain
+-        if (l_offset & 0x80000000)
++        // Add offset if Raw Value is not zero
++	if (l_raw != 0)
+         {
+-            // Negative offset
+-            l_raw -= (~l_offset + 1);
+-        }
+-        else
+-        {
+-            l_raw += l_offset;
++            if (l_offset & 0x80000000)
++            {
++                // Negative offset
++                l_raw -= (~l_offset + 1);
++	    }
++	    else
++            {
++                l_raw += l_offset;
++            }
+         }
+         //Check to see if l_raw is negative.  If so, set raw to 0
+         if (l_raw & 0x8000)
+-- 
+2.7.4
+