diff --git a/devel/qt5-script/Makefile b/devel/qt5-script/Makefile
index cd8e2cddefbc..5fbf625428c9 100644
--- a/devel/qt5-script/Makefile
+++ b/devel/qt5-script/Makefile
@@ -1,6 +1,6 @@
 PORTNAME=	script
 PORTVERSION=	${QT5_VERSION}${QT5_KDE_PATCH}
-PORTREVISION=	1
+PORTREVISION=	2
 CATEGORIES=	devel
 PKGNAMEPREFIX=	qt5-
 
diff --git a/devel/qt5-script/files/patch-src_3rdparty_javascriptcore_JavaScriptCore_interpreter_CallFrame.h b/devel/qt5-script/files/patch-src_3rdparty_javascriptcore_JavaScriptCore_interpreter_CallFrame.h
new file mode 100644
index 000000000000..bce9105b6145
--- /dev/null
+++ b/devel/qt5-script/files/patch-src_3rdparty_javascriptcore_JavaScriptCore_interpreter_CallFrame.h
@@ -0,0 +1,15 @@
+Index: src/3rdparty/javascriptcore/JavaScriptCore/interpreter/CallFrame.h
+--- src/3rdparty/javascriptcore/JavaScriptCore/interpreter/CallFrame.h.orig
++++ src/3rdparty/javascriptcore/JavaScriptCore/interpreter/CallFrame.h
+@@ -135,9 +135,11 @@ namespace JSC  {
+         static CallFrame* noCaller() { return reinterpret_cast<CallFrame*>(HostCallFrameFlag); }
+         int returnValueRegister() const { return this[RegisterFile::ReturnValueRegister].i(); }
+ 
++#pragma clang optimize off
+         bool hasHostCallFrameFlag() const { return reinterpret_cast<intptr_t>(this) & HostCallFrameFlag; }
+         CallFrame* addHostCallFrameFlag() const { return reinterpret_cast<CallFrame*>(reinterpret_cast<intptr_t>(this) | HostCallFrameFlag); }
+         CallFrame* removeHostCallFrameFlag() { return reinterpret_cast<CallFrame*>(reinterpret_cast<intptr_t>(this) & ~HostCallFrameFlag); }
++#pragma clang optimize on
+ 
+     private:
+         void setArgumentCount(int count) { static_cast<Register*>(this)[RegisterFile::ArgumentCount] = Register::withInt(count); }