diff --git a/mozilla/security/nss/macbuild/NSSCommon.h b/mozilla/security/nss/macbuild/NSSCommon.h
index 3b3a94c31e5..83a54d7e315 100755
--- a/mozilla/security/nss/macbuild/NSSCommon.h
+++ b/mozilla/security/nss/macbuild/NSSCommon.h
@@ -2,4 +2,5 @@
 
 #define NSPR20 1
 #define MP_API_COMPATIBLE 1
-#define NSS_3_4_CODE 1 /* Remove this when we start building NSS 4.0 by default */
\ No newline at end of file
+#define NSS_3_4_CODE 1 /* Remove this when we start building NSS 4.0 by default */
+#define SHLIB_SUFFIX "shlb"