diff --git a/make/windows/projectfiles/common/Makefile b/make/windows/projectfiles/common/Makefile
index 3e7d159ac38ba027adc53ce1b400df12837339db..1b037a185a00cf4a5b1a40ecbead54b0d1b60bcc 100644
--- a/make/windows/projectfiles/common/Makefile
+++ b/make/windows/projectfiles/common/Makefile
@@ -108,7 +108,7 @@ ProjectCreatorIDEOptions =       $(ProjectCreatorIDEOptions) \
       -define              HOTSPOT_VM_DISTRO=\\\"$(HOTSPOT_VM_DISTRO)\\\"
 
 $(HOTSPOTBUILDSPACE)/$(ProjectFile): $(HOTSPOTBUILDSPACE)/classes/ProjectCreator.class
-	@$(RUN_JAVA) -Djava.class.path=$(HOTSPOTBUILDSPACE)/classes ProjectCreator WinGammaPlatform$(VcVersion) $(ProjectCreatorIDEOptions)
+	@$(RUN_JAVA) -Djava.class.path="$(HOTSPOTBUILDSPACE)/classes" ProjectCreator WinGammaPlatform$(VcVersion) $(ProjectCreatorIDEOptions)
 
 clean:
 	@rm -rf $(HOTSPOTBUILDSPACE)/classes