diff --git a/src/tools/make/oberon.mk b/src/tools/make/oberon.mk
index 21068cba..dd1610bb 100644
--- a/src/tools/make/oberon.mk
+++ b/src/tools/make/oberon.mk
@@ -190,7 +190,7 @@ installable:
 uninstall: installable
 	@printf '\nUninstalling from \"$(INSTALLDIR)\"\n'
 	rm -rf "$(INSTALLDIR)"
-	@sh src/tools/make/addlibrary.sh uninstall "$(INSTALLDIR)/lib" $(oname)
+	@sh src/tools/make/addlibrary.sh uninstall "$(INSTALLDIR)/lib" $(ONAME)
 
 
 # install: Use only after a successful full build. Installs the compiler