diff --git a/ironic_python_agent/hardware.py b/ironic_python_agent/hardware.py
index 45414c6a1..7d6c16769 100644
--- a/ironic_python_agent/hardware.py
+++ b/ironic_python_agent/hardware.py
@@ -1051,7 +1051,7 @@ class GenericHardwareManager(HardwareManager):
             # types of communication media and protocols and effectively used
             for channel in range(1, 8):
                 out, e = utils.execute(
-                    "ipmitool lan print {} | awk '/IP Address[[:space:]]*:/"
+                    "ipmitool lan print {} | awk '/IP Address[ \\t]*:/"
                     " {{print $4}}'".format(channel), shell=True)
                 if e.startswith("Invalid channel"):
                     continue
diff --git a/releasenotes/notes/fix-bmc-ip-detection-for-coreos-483be0286593e393.yaml b/releasenotes/notes/fix-bmc-ip-detection-for-coreos-483be0286593e393.yaml
new file mode 100644
index 000000000..1a33130ff
--- /dev/null
+++ b/releasenotes/notes/fix-bmc-ip-detection-for-coreos-483be0286593e393.yaml
@@ -0,0 +1,6 @@
+---
+fixes:
+  - |
+    Fixes detection of IPMI address in CoreOS-based images, by ensuring that
+    parsing of ``ipmitool`` output is compatible with the bundled
+    implementation of ``awk`` (``mawk``).