diff --git a/pmd/java14/bin/bgastviewer.bat b/pmd/java14/bin/bgastviewer.bat
index 4f5b081187..6ca7626f28 100755
--- a/pmd/java14/bin/bgastviewer.bat
+++ b/pmd/java14/bin/bgastviewer.bat
@@ -8,5 +8,5 @@ set JARPATH=%JARPATH%;%RWPATH%
 set OPTS=
 set MAIN_CLASS=net.sourceforge.pmd.util.viewer.Viewer
 
-java %OPTS% -cp %PMDJAR%;%JARPATH%;%TOPDIR%/build %MAIN_CLASS% %*
+java %OPTS% -cp "%PMDJAR%;%JARPATH%;%TOPDIR%/build" %MAIN_CLASS% %*
 
diff --git a/pmd/java14/bin/cpdgui.bat b/pmd/java14/bin/cpdgui.bat
index af6010eb29..80f6ce8a4f 100755
--- a/pmd/java14/bin/cpdgui.bat
+++ b/pmd/java14/bin/cpdgui.bat
@@ -8,5 +8,5 @@ set JARPATH=%JARPATH%;%RWPATH%
 set OPTS=-Xmx512m
 set MAIN_CLASS=net.sourceforge.pmd.cpd.GUI
 
-java %OPTS% -cp %PMDJAR%;%JARPATH% %MAIN_CLASS% %*
+java %OPTS% -cp "%PMDJAR%;%JARPATH%" %MAIN_CLASS% %*
 
diff --git a/pmd/java14/bin/designer.bat b/pmd/java14/bin/designer.bat
index 6cedb6be18..ddd923051e 100755
--- a/pmd/java14/bin/designer.bat
+++ b/pmd/java14/bin/designer.bat
@@ -8,5 +8,5 @@ set JARPATH=%JARPATH%;%RWPATH%
 set OPTS=
 set MAIN_CLASS=net.sourceforge.pmd.util.designer.Designer
 
-java %OPTS% -cp %PMDJAR%;%JARPATH%;%TOPDIR%/build %MAIN_CLASS% %*
+java %OPTS% -cp "%PMDJAR%;%JARPATH%;%TOPDIR%/build" %MAIN_CLASS% %*
 
diff --git a/pmd/java14/bin/pmd.bat b/pmd/java14/bin/pmd.bat
index f53f6a4327..57cce6ef51 100755
--- a/pmd/java14/bin/pmd.bat
+++ b/pmd/java14/bin/pmd.bat
@@ -8,5 +8,5 @@ set JARPATH=%JARPATH%;%RWPATH%
 set OPTS=
 set MAIN_CLASS=net.sourceforge.pmd.PMD
 
-java %OPTS% -cp %PMDJAR%;%JARPATH%;%CLASSPATH% %MAIN_CLASS% %*
+java %OPTS% -cp "%PMDJAR%;%JARPATH%;%CLASSPATH%" %MAIN_CLASS% %*