diff --git a/dom/indexedDB/Key.cpp b/dom/indexedDB/Key.cpp
index 440e9a1ab14..cc2d39ebd09 100644
--- a/dom/indexedDB/Key.cpp
+++ b/dom/indexedDB/Key.cpp
@@ -39,7 +39,7 @@
 
 #include "Key.h"
 #include "nsIStreamBufferAccess.h"
-#include "jsdate.h"
+#include "jsfriendapi.h"
 #include "nsAlgorithm.h"
 #include "nsContentUtils.h"
 #include "nsJSUtils.h"
diff --git a/dom/sms/src/SmsMessage.cpp b/dom/sms/src/SmsMessage.cpp
index b5f8df04b7a..aeab9cf0020 100644
--- a/dom/sms/src/SmsMessage.cpp
+++ b/dom/sms/src/SmsMessage.cpp
@@ -39,7 +39,7 @@
 #include "SmsMessage.h"
 #include "nsIDOMClassInfo.h"
 #include "jsapi.h" // For OBJECT_TO_JSVAL and JS_NewDateObjectMsec
-#include "jsdate.h" // For js_DateGetMsecSinceEpoch
+#include "jsfriendapi.h" // For js_DateGetMsecSinceEpoch
 #include "Constants.h"
 
 DOMCI_DATA(MozSmsMessage, mozilla::dom::sms::SmsMessage)
diff --git a/js/src/Makefile.in b/js/src/Makefile.in
index 07219e2e2d6..43c88ad1e67 100644
--- a/js/src/Makefile.in
+++ b/js/src/Makefile.in
@@ -196,7 +196,6 @@ INSTALLED_HEADERS = \
 		jscntxt.h \
 		jscompat.h \
 		jscrashreport.h \
-		jsdate.h \
 		jsdbgapi.h \
 		jsdhash.h \
 		jsfriendapi.h \
diff --git a/js/src/jsdate.h b/js/src/jsdate.h
index 431b0b9c095..4d3545b4797 100644
--- a/js/src/jsdate.h
+++ b/js/src/jsdate.h
@@ -77,13 +77,6 @@ extern JS_FRIEND_API(JSObject*)
 js_NewDateObject(JSContext* cx, int year, int mon, int mday,
                  int hour, int min, int sec);
 
-/*
- * Detect whether the internal date value is NaN.  (Because failure is
- * out-of-band for js_DateGet*)
- */
-extern JS_FRIEND_API(JSBool)
-js_DateIsValid(JSContext *cx, JSObject* obj);
-
 extern JS_FRIEND_API(int)
 js_DateGetYear(JSContext *cx, JSObject* obj);
 
@@ -102,9 +95,6 @@ js_DateGetMinutes(JSContext *cx, JSObject* obj);
 extern JS_FRIEND_API(int)
 js_DateGetSeconds(JSContext *cx, JSObject* obj);
 
-extern JS_FRIEND_API(jsdouble)
-js_DateGetMsecSinceEpoch(JSContext *cx, JSObject *obj);
-
 typedef uint32_t JSIntervalTime;
 
 extern JS_FRIEND_API(JSIntervalTime)
diff --git a/js/src/jsfriendapi.h b/js/src/jsfriendapi.h
index d046a52d45f..e3b3b8413dd 100644
--- a/js/src/jsfriendapi.h
+++ b/js/src/jsfriendapi.h
@@ -498,4 +498,16 @@ js_GetClassPrototype(JSContext *cx, JSObject *scope, JSProtoKey protoKey,
 
 #endif
 
+/* Implemented in jsdate.cpp. */
+
+/*
+ * Detect whether the internal date value is NaN.  (Because failure is
+ * out-of-band for js_DateGet*)
+ */
+extern JS_FRIEND_API(JSBool)
+js_DateIsValid(JSContext *cx, JSObject* obj);
+
+extern JS_FRIEND_API(double)
+js_DateGetMsecSinceEpoch(JSContext *cx, JSObject *obj);
+
 #endif /* jsfriendapi_h___ */
diff --git a/storage/src/mozStoragePrivateHelpers.cpp b/storage/src/mozStoragePrivateHelpers.cpp
index 11b65c850b4..5fed1d102b1 100644
--- a/storage/src/mozStoragePrivateHelpers.cpp
+++ b/storage/src/mozStoragePrivateHelpers.cpp
@@ -41,7 +41,7 @@
 #include "sqlite3.h"
 
 #include "jsapi.h"
-#include "jsdate.h"
+#include "jsfriendapi.h"
 
 #include "nsPrintfCString.h"
 #include "nsString.h"