diff --git a/js/src/jit/CodeGenerator.cpp b/js/src/jit/CodeGenerator.cpp
index 18620e3a455..7197e597060 100644
--- a/js/src/jit/CodeGenerator.cpp
+++ b/js/src/jit/CodeGenerator.cpp
@@ -623,7 +623,7 @@ CodeGenerator::visitIntToString(LIntToString *lir)
 typedef JSString *(*DoubleToStringFn)(ThreadSafeContext *, double);
 typedef ParallelResult (*DoubleToStringParFn)(ForkJoinSlice *, double, MutableHandleString);
 static const VMFunctionsModal DoubleToStringInfo = VMFunctionsModal(
-    FunctionInfo<DoubleToStringFn>(js_NumberToString<CanGC>),
+    FunctionInfo<DoubleToStringFn>(NumberToString<CanGC>),
     FunctionInfo<DoubleToStringParFn>(DoubleToStringPar));
 
 bool
diff --git a/js/src/jit/ParallelFunctions.cpp b/js/src/jit/ParallelFunctions.cpp
index 3a9251cc8b0..a443e235976 100644
--- a/js/src/jit/ParallelFunctions.cpp
+++ b/js/src/jit/ParallelFunctions.cpp
@@ -211,7 +211,7 @@ jit::IntToStringPar(ForkJoinSlice *slice, int i, MutableHandleString out)
 ParallelResult
 jit::DoubleToStringPar(ForkJoinSlice *slice, double d, MutableHandleString out)
 {
-    JSString *str = js_NumberToString<NoGC>(slice, d);
+    JSString *str = NumberToString<NoGC>(slice, d);
     if (!str)
         return TP_RETRY_SEQUENTIALLY;
     out.set(str);
diff --git a/js/src/jsnum.cpp b/js/src/jsnum.cpp
index b0519b89a76..d32a9a0cb80 100644
--- a/js/src/jsnum.cpp
+++ b/js/src/jsnum.cpp
@@ -1388,16 +1388,16 @@ js_NumberToStringWithBase(ThreadSafeContext *cx, double d, int base)
 
 template <AllowGC allowGC>
 JSString *
-js_NumberToString(ThreadSafeContext *cx, double d)
+js::NumberToString(ThreadSafeContext *cx, double d)
 {
     return js_NumberToStringWithBase<allowGC>(cx, d, 10);
 }
 
 template JSString *
-js_NumberToString<CanGC>(ThreadSafeContext *cx, double d);
+js::NumberToString<CanGC>(ThreadSafeContext *cx, double d);
 
 template JSString *
-js_NumberToString<NoGC>(ThreadSafeContext *cx, double d);
+js::NumberToString<NoGC>(ThreadSafeContext *cx, double d);
 
 template <AllowGC allowGC>
 JSAtom *
diff --git a/js/src/jsnum.h b/js/src/jsnum.h
index 15c33920aa0..0c112b97722 100644
--- a/js/src/jsnum.h
+++ b/js/src/jsnum.h
@@ -44,6 +44,8 @@ extern const char js_parseInt_str[];
 
 class JSAtom;
 
+namespace js {
+
 /*
  * When base == 10, this function implements ToString() as specified by
  * ECMA-262-5 section 9.8.1; but note that it handles integers specially for
@@ -51,9 +53,7 @@ class JSAtom;
  */
 template <js::AllowGC allowGC>
 extern JSString *
-js_NumberToString(js::ThreadSafeContext *cx, double d);
-
-namespace js {
+NumberToString(js::ThreadSafeContext *cx, double d);
 
 template <js::AllowGC allowGC>
 extern JSAtom *
diff --git a/js/src/jsstr.cpp b/js/src/jsstr.cpp
index f43f84cd514..a9b39999b97 100644
--- a/js/src/jsstr.cpp
+++ b/js/src/jsstr.cpp
@@ -3862,7 +3862,7 @@ js::ToStringSlow(ExclusiveContext *cx, typename MaybeRooted<Value, allowGC>::Han
     } else if (v.isInt32()) {
         str = Int32ToString<allowGC>(cx, v.toInt32());
     } else if (v.isDouble()) {
-        str = js_NumberToString<allowGC>(cx, v.toDouble());
+        str = NumberToString<allowGC>(cx, v.toDouble());
     } else if (v.isBoolean()) {
         str = js_BooleanToString(cx, v.toBoolean());
     } else if (v.isNull()) {