diff --git a/gfx/src/ps/nsFontMetricsPS.cpp b/gfx/src/ps/nsFontMetricsPS.cpp
index 090d070ac81..ffd5bcee0fc 100644
--- a/gfx/src/ps/nsFontMetricsPS.cpp
+++ b/gfx/src/ps/nsFontMetricsPS.cpp
@@ -58,6 +58,8 @@
 #endif
 #include "nsAutoBuffer.h"
 
+const PRUint16 nsPSFontGenerator::kSubFontSize = 255; 
+
 extern nsIAtom *gUsersLocale;
 #define NS_IS_BOLD(weight) ((weight) > 400 ? 1 : 0)
 
diff --git a/gfx/src/ps/nsFontMetricsPS.h b/gfx/src/ps/nsFontMetricsPS.h
index 0c84cec3a41..49d38e2042d 100644
--- a/gfx/src/ps/nsFontMetricsPS.h
+++ b/gfx/src/ps/nsFontMetricsPS.h
@@ -458,7 +458,7 @@ public:
   nsString *GetSubset();
 
   // 256 (PS type 1 encoding vector size) - 1 (1 is for mandatory /.notdef)
-  const static PRUint16 kSubFontSize = 255; 
+  const static PRUint16 kSubFontSize; 
 
 protected:
   // XXX To support non-BMP characters, we may have to use