diff --git a/kdecore/kernel/kauthorization.cpp b/kdecore/kernel/kauthorization.cpp
index 2162fb0b..f53e12e5 100644
--- a/kdecore/kernel/kauthorization.cpp
+++ b/kdecore/kernel/kauthorization.cpp
@@ -31,7 +31,6 @@
 #include <syslog.h>
 
 #define KAUTHORIZATION_TIMEOUT 250
-#define KAUTHORIZATION_SLEEPTIME 50
 
 // see kdebug.areas
 static const int s_kauthorizationarea = 185;
@@ -148,7 +147,6 @@ int KAuthorization::execute(const QString &helper, const QString &method, const
     while (KDBusConnectionPool::isServiceRegistered(helper, QDBusConnection::systemBus())) {
         kDebug(s_kauthorizationarea) << "Waiting for service to unregister" << helper;
         QCoreApplication::processEvents(QEventLoop::AllEvents, KAUTHORIZATION_TIMEOUT);
-        QThread::msleep(KAUTHORIZATION_SLEEPTIME);
     }
 
     QDBusInterface kauthorizationinterface(
@@ -159,7 +157,6 @@ int KAuthorization::execute(const QString &helper, const QString &method, const
     while (!reply.isFinished()) {
         kDebug(s_kauthorizationarea) << "Waiting for service call to finish" << helper;
         QCoreApplication::processEvents(QEventLoop::AllEvents, KAUTHORIZATION_TIMEOUT);
-        QThread::msleep(KAUTHORIZATION_SLEEPTIME);
     }
     int result = KAuthorization::NoError;
     if (!reply.isValid()) {
diff --git a/kdeui/kernel/ktoolinvocation.cpp b/kdeui/kernel/ktoolinvocation.cpp
index 42a6a364..454752a0 100644
--- a/kdeui/kernel/ktoolinvocation.cpp
+++ b/kdeui/kernel/ktoolinvocation.cpp
@@ -43,7 +43,6 @@
 #endif
 
 #define KTOOLINVOCATION_TIMEOUT 250
-#define KTOOLINVOCATION_SLEEPTIME 50
 
 // NOTE: keep in sync with:
 // kdelibs/kinit/klauncher_adaptor.h
@@ -135,7 +134,6 @@ int KToolInvocation::startServiceInternal(const char *_function,
     kDebug() << "Waiting for klauncher call to finish" << function;
     while (!reply.isFinished()) {
         QCoreApplication::processEvents(QEventLoop::AllEvents, KTOOLINVOCATION_TIMEOUT);
-        QThread::msleep(KTOOLINVOCATION_SLEEPTIME);
     }
     kDebug() << "Done waiting for klauncher call to finish" << function;
     if (!reply.isValid()) {