diff --git a/platforms/unix32-unsigned.xml b/platforms/unix32-unsigned.xml
index 0d2a70f0e..bc4ca0e89 100644
--- a/platforms/unix32-unsigned.xml
+++ b/platforms/unix32-unsigned.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <platform>
   <char_bit>8</char_bit>
-  <default-sign>u</default-sign>
+  <default-sign>unsigned</default-sign>
   <sizeof>
     <short>2</short>
     <int>4</int>
diff --git a/platforms/unix64-unsigned.xml b/platforms/unix64-unsigned.xml
index 9c25c8a7d..21d97b611 100644
--- a/platforms/unix64-unsigned.xml
+++ b/platforms/unix64-unsigned.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <platform>
   <char_bit>8</char_bit>
-  <default-sign>u</default-sign>
+  <default-sign>unsigned</default-sign>
   <sizeof>
     <short>2</short>
     <int>4</int>