diff --git a/src/corelib/io/qprocess.cpp b/src/corelib/io/qprocess.cpp
index 9ce9fd855c..c2234e9667 100644
--- a/src/corelib/io/qprocess.cpp
+++ b/src/corelib/io/qprocess.cpp
@@ -144,18 +144,6 @@ QT_BEGIN_NAMESPACE
     \sa QProcess, QProcess::systemEnvironment(), QProcess::setProcessEnvironment()
 */
 
-template<> void QSharedDataPointer<QProcessEnvironmentPrivate>::detach()
-{
-    if (d && d->ref == 1)
-        return;
-    QProcessEnvironmentPrivate *x = (d ? new QProcessEnvironmentPrivate(*d)
-                                     : new QProcessEnvironmentPrivate);
-    x->ref.ref();
-    if (d && !d->ref.deref())
-        delete d;
-    d = x;
-}
-
 QStringList QProcessEnvironmentPrivate::toList() const
 {
     QStringList result;
diff --git a/src/corelib/io/qprocess_p.h b/src/corelib/io/qprocess_p.h
index f70579bd17..54d49361be 100644
--- a/src/corelib/io/qprocess_p.h
+++ b/src/corelib/io/qprocess_p.h
@@ -182,6 +182,18 @@ public:
     void insert(const QProcessEnvironmentPrivate &other);
 };
 
+template<> Q_INLINE_TEMPLATE void QSharedDataPointer<QProcessEnvironmentPrivate>::detach()
+{
+    if (d && d->ref == 1)
+        return;
+    QProcessEnvironmentPrivate *x = (d ? new QProcessEnvironmentPrivate(*d)
+                                     : new QProcessEnvironmentPrivate);
+    x->ref.ref();
+    if (d && !d->ref.deref())
+        delete d;
+    d = x;
+}
+
 class QProcessPrivate : public QIODevicePrivate
 {
 public: