diff --git a/utilities/trunk/scripts/paradiseo_nightly_build.sh b/utilities/trunk/scripts/paradiseo_nightly_build.sh
index e3e286e4c..f2a3b77c1 100755
--- a/utilities/trunk/scripts/paradiseo_nightly_build.sh
+++ b/utilities/trunk/scripts/paradiseo_nightly_build.sh
@@ -28,7 +28,7 @@ do
 	cd $PARADISEO_EO_DIR/build
 	
 	# Launch CTest for EO
-	cmake .. -G$gen -DCMAKE_BUILD_TYPE=$EO_BUILD_TYPE -DENABLE_CMAKE_TESTING=TRUE >> $SPY
+	cmake .. -G"$gen" -DCMAKE_BUILD_TYPE=$EO_BUILD_TYPE -DENABLE_CMAKE_TESTING=TRUE >> $SPY
 	ctest -D NightlyUpdate -D NightlyStart -D NightlyBuild -D NightlyCoverage  -D NightlyTest -D NightlyMemCheck -D NightlySubmit >> $SPY
 	
 	
@@ -37,7 +37,7 @@ do
 	cd $PARADISEO_MO_DIR/build
 	
 	# Launch CTest for MO
-	cmake .. -Dconfig=$CMAKE_INSTALL_CONFIG -G$gen -DCMAKE_BUILD_TYPE=$MO_BUILD_TYPE -DENABLE_CMAKE_TESTING=TRUE >> $SPY
+	cmake .. -Dconfig=$CMAKE_INSTALL_CONFIG -G"$gen" -DCMAKE_BUILD_TYPE=$MO_BUILD_TYPE -DENABLE_CMAKE_TESTING=TRUE >> $SPY
 	ctest -D NightlyUpdate -D NightlyStart -D NightlyBuild -D NightlyCoverage  -D NightlyTest -D ightlyMemCheck -D NightlySubmit >> $SPY
 	
 	
@@ -47,7 +47,7 @@ do
 	cd $PARADISEO_MOEO_DIR/build
 	
 	# Launch CTest for MOEO
-	cmake .. -Dconfig=$CMAKE_INSTALL_CONFIG -G$gen -DCMAKE_BUILD_TYPE=$MOEO_BUILD_TYPE -DENABLE_CMAKE_TESTING=TRUE >> $SPY
+	cmake .. -Dconfig=$CMAKE_INSTALL_CONFIG -G"$gen" -DCMAKE_BUILD_TYPE=$MOEO_BUILD_TYPE -DENABLE_CMAKE_TESTING=TRUE >> $SPY
 	ctest -D NightlyUpdate -D NightlyStart -D NightlyBuild -D NightlyCoverage  -D NightlyTest -D NightlyMemCheck -D NightlySubmit >> $SPY
 	
 	
@@ -57,7 +57,7 @@ do
 	cd $PARADISEO_PEO_DIR/build
 	
 	# Launch CTest for PEO
-	cmake .. -Dconfig=$CMAKE_INSTALL_CONFIG -G$gen -DCMAKE_BUILD_TYPE=$PEO_BUILD_TYPE -DENABLE_CMAKE_TESTING=TRUE >> $SPY
+	cmake .. -Dconfig=$CMAKE_INSTALL_CONFIG -G"$gen" -DCMAKE_BUILD_TYPE=$PEO_BUILD_TYPE -DENABLE_CMAKE_TESTING=TRUE >> $SPY
 	ctest -D NightlyUpdate -D NightlyStart -D NightlyBuild -D NightlyCoverage  -D NightlyTest -D NightlyMemCheck -D NightlySubmit >> $SPY
 
 	echo "*** END Generator=$gen" >> $SPY