diff --git a/platforms/aix_ppc64.xml b/platforms/aix_ppc64.xml
new file mode 100644
index 000000000..15062d6da
--- /dev/null
+++ b/platforms/aix_ppc64.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0"?>
+<platform>
+  <char_bit>8</char_bit>
+  <default-sign>unsigned</default-sign>
+  <sizeof>
+    <short>2</short>
+    <int>4</int>
+    <long>8</long>
+    <long-long>8</long-long>
+    <float>4</float>
+    <double>8</double>
+    <long-double>8</long-double>
+    <pointer>8</pointer>
+    <size_t>8</size_t>
+    <wchar_t>2</wchar_t>
+  </sizeof>
+</platform>