diff --git a/_constraints b/_constraints
new file mode 100644
index 0000000..5915b36
--- /dev/null
+++ b/_constraints
@@ -0,0 +1,14 @@
+<constraints>
+  <overwrite>
+    <conditions>
+      <arch>ppc64</arch>
+      <arch>ppc64le</arch>
+    </conditions>
+    <hardware>
+    <disk>
+      <size unit="G">4</size>
+    </disk>
+    </hardware>
+  </overwrite>
+</constraints>
+
diff --git a/ghc-mustache.changes b/ghc-mustache.changes
index bd5b88a..5134e46 100644
--- a/ghc-mustache.changes
+++ b/ghc-mustache.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Thu Sep 17 07:31:28 UTC 2020 - Michel Normand <normand@linux.vnet.ibm.com>
+
+- Add _constraints with min 4GB disk space for ppc64/ppc64le
+
 -------------------------------------------------------------------
 Fri Sep  4 10:40:12 UTC 2020 - Peter Simons <psimons@suse.com>