diff --git a/_constraints b/_constraints
new file mode 100644
index 0000000..82dbb4e
--- /dev/null
+++ b/_constraints
@@ -0,0 +1,14 @@
+<?xml version="1.0"?>
+<constraints>
+  <overwrite>
+    <conditions>
+      <arch>ppc</arch>
+      <arch>ppc64le</arch>
+    </conditions>
+    <hardware>
+      <physicalmemory>
+        <size unit="G">5</size>
+      </physicalmemory>
+    </hardware>
+  </overwrite>
+</constraints>
diff --git a/wireshark.changes b/wireshark.changes
index 9571a82..4522ee2 100644
--- a/wireshark.changes
+++ b/wireshark.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Fri Jun  5 08:21:21 UTC 2020 - Michel Normand <normand@linux.vnet.ibm.com>
+
+- Add _constraints for ppc/ppc64le that need more than 3GB to build
+
 -------------------------------------------------------------------
 Wed May 20 07:57:58 UTC 2020 - Robert Frohl <rfrohl@suse.com>