diff --git a/Tests/bin/MarlinTests.sh b/Tests/bin/MarlinTests.sh
index 86960a5..7bc299e 100755
--- a/Tests/bin/MarlinTests.sh
+++ b/Tests/bin/MarlinTests.sh
@@ -10,7 +10,7 @@
 #----- parse command line - first argument is the
 #      test to run
 ## Drop existing ClicPerformance from MARLIN_DLL
-MARLIN_DLL=`echo $MARLIN_DLL | sed -e 's/:\?[-a-z0-9A-Z_/.=]*libClicPerformance.so[.0-9]*:\?/:/'`
+MARLIN_DLL=`echo $MARLIN_DLL | sed -E 's/(:?)[^:]*libClicPerformance\.so:?/\1/'`
 export MARLIN_DLL=$1:$MARLIN_DLL
 command=$2
 theargs=""
diff --git a/Tests/bin/Profiler.sh b/Tests/bin/Profiler.sh
index bc86195..a28b1a5 100755
--- a/Tests/bin/Profiler.sh
+++ b/Tests/bin/Profiler.sh
@@ -9,7 +9,7 @@ source /cvmfs/projects.cern.ch/intelsw/psxe/linux/all-setup.sh
 #----- parse command line - first argument is the
 #      test to run
 ## Drop existing ClicPerformance from MARLIN_DLL
-MARLIN_DLL=`echo $MARLIN_DLL | sed -e 's/:\?[-a-z0-9A-Z_/.=]*libClicPerformance.so[.0-9]*:\?/:/'`
+MARLIN_DLL=`echo $MARLIN_DLL | sed -E 's/(:?)[^:]*libClicPerformance\.so:?/\1/'`
 export MARLIN_DLL=$1:$MARLIN_DLL
 command=$2
 theargs=""
diff --git a/Tests/bin/ValgrindTests.sh b/Tests/bin/ValgrindTests.sh
index deb4fe2..83f0b48 100755
--- a/Tests/bin/ValgrindTests.sh
+++ b/Tests/bin/ValgrindTests.sh
@@ -10,7 +10,7 @@
 #----- parse command line - first argument is the
 #      test to run
 ## Drop existing ClicPerformance from MARLIN_DLL
-MARLIN_DLL=`echo $MARLIN_DLL | sed -e 's/:\?[-a-z0-9A-Z_/.=]*libClicPerformance.so[.0-9]*:\?/:/'`
+MARLIN_DLL=`echo $MARLIN_DLL | sed -E 's/(:?)[^:]*libClicPerformance\.so:?/\1/'`
 export MARLIN_DLL=$1:$MARLIN_DLL
 export VALGRIND_LIB=$2
 command=$3