diff --git a/_constraints b/_constraints
index 941060b..c3af35c 100644
--- a/_constraints
+++ b/_constraints
@@ -2,11 +2,12 @@
 <constraints>
   <overwrite>
     <conditions>
+      <arch>ppc64</arch>
       <arch>ppc64le</arch>
     </conditions>
     <hardware>
       <disk>
-        <size unit="M">6000</size>
+        <size unit="M">7000</size>
       </disk>
     </hardware>
   </overwrite>
diff --git a/libqt5-qt3d.changes b/libqt5-qt3d.changes
index bd79568..f84cca2 100644
--- a/libqt5-qt3d.changes
+++ b/libqt5-qt3d.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Tue Jan 28 09:29:47 UTC 2020 - Michel Normand <normand@linux.vnet.ibm.com>
+
+- Increase PowerPC disk size in _constraints to avoid build failure
+
 -------------------------------------------------------------------
 Mon Jan 27 13:18:31 UTC 2020 - Fabian Vogt <fabian@ritter-vogt.de>