diff --git a/fix-build-qt-5.12-again.patch b/fix-build-qt-5.12-again.patch
new file mode 100644
index 0000000..17a98a2
--- /dev/null
+++ b/fix-build-qt-5.12-again.patch
@@ -0,0 +1,27 @@
+From d0c9f9c8a0c62c53812c25e5bd77119f214cd1f8 Mon Sep 17 00:00:00 2001
+From: Volker Krause <volker.krause@kdab.com>
+Date: Mon, 20 Aug 2018 13:47:35 +0200
+Subject: [PATCH] Adapt to Qt 5.12 V4 identifier changes
+
+---
+ plugins/qmlsupport/qmlcontextpropertyadaptor.cpp | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/plugins/qmlsupport/qmlcontextpropertyadaptor.cpp b/plugins/qmlsupport/qmlcontextpropertyadaptor.cpp
+index 2c183f083..1c24eaa44 100644
+--- a/plugins/qmlsupport/qmlcontextpropertyadaptor.cpp
++++ b/plugins/qmlsupport/qmlcontextpropertyadaptor.cpp
+@@ -100,8 +100,13 @@ void QmlContextPropertyAdaptor::doSetObject(const ObjectInstance &oi)
+     QV4::IdentifierHashEntry *e = propNames.d->entries;
+     QV4::IdentifierHashEntry *end = e + propNames.d->alloc;
+     while (e < end) {
++#if QT_VERSION < QT_VERSION_CHECK(5, 12, 0)
+         if (e->identifier)
+             m_contextPropertyNames.push_back(e->identifier->string);
++#else
++        if (e->identifier.isValid())
++            m_contextPropertyNames.push_back(e->identifier.toQString());
++#endif
+         ++e;
+     }
+ #else
diff --git a/gammaray.changes b/gammaray.changes
index beba397..60d02a6 100644
--- a/gammaray.changes
+++ b/gammaray.changes
@@ -1,8 +1,9 @@
 -------------------------------------------------------------------
 Fri Oct  5 08:01:34 UTC 2018 - fabian@ritter-vogt.de
 
-- Add patch to fix build against Qt 5.12:
+- Add patches to fix build against Qt 5.12:
   * fix-build-qt-5.12.patch
+  * fix-build-qt-5.12-again.patch
 
 -------------------------------------------------------------------
 Thu Oct  4 12:19:52 UTC 2018 - fabian@ritter-vogt.de
diff --git a/gammaray.spec b/gammaray.spec
index 985e075..6dd8b95 100644
--- a/gammaray.spec
+++ b/gammaray.spec
@@ -29,6 +29,7 @@ Source:         https://github.com/KDAB/GammaRay/releases/download/v%{version}/%
 Patch0:         Fix_icons_installation.patch
 # PATCH-FIX-UPSTREAM
 Patch1:         fix-build-qt-5.12.patch
+Patch2:         fix-build-qt-5.12-again.patch
 BuildRequires:  binutils-devel
 BuildRequires:  cmake >= 2.8.11
 BuildRequires:  fdupes