diff --git a/Makefile b/Makefile
index cfbbff1..9c260d2 100644
--- a/Makefile
+++ b/Makefile
@@ -1,37 +1,38 @@
 REPO=repo
 TMP=sdk
 ARGS="--user"
+FSDK_VERSION?=1.6
 ARCH?=$(shell flatpak --default-arch)
 INSTALL_SOURCE?=--install-deps-from=flathub
 
 all: $(REPO)/config $(foreach file, $(wildcard *.json), $(subst .json,.app,$(file)))
 
 %.app: %.json
 	flatpak-builder $(INSTALL_SOURCE) --arch=$(ARCH) --force-clean --require-changes --ccache --repo=$(REPO) --subject="build of org.kde.Sdk, `date`" ${EXPORT_ARGS} $(TMP) $<
 
 export:
 	flatpak build-update-repo $(REPO) ${EXPORT_ARGS} --generate-static-deltas
 
 $(REPO)/config:
 	ostree init --mode=archive-z2 --repo=$(REPO)
 
 remotes:
-	flatpak remote-add --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepo
+	flatpak remote-add $(ARGS) --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepo
 
 deps:
-	flatpak install --arch=$(ARCH) $(ARGS) flathub org.freedesktop.Platform.Locale 1.6; true
-	flatpak install --arch=$(ARCH) $(ARGS) flathub org.freedesktop.Sdk.Locale 1.6; true
-	flatpak install --arch=$(ARCH) $(ARGS) flathub org.freedesktop.Platform 1.6; true
-	flatpak install --arch=$(ARCH) $(ARGS) flathub org.freedesktop.Sdk 1.6; true
-	flatpak install --arch=$(ARCH) $(ARGS) flathub org.freedesktop.Sdk.Debug 1.6; true
-	flatpak install --arch=$(ARCH) $(ARGS) flathub org.freedesktop.Sdk.Docs 1.6; true
+	flatpak install --arch=$(ARCH) $(ARGS) flathub org.freedesktop.Platform.Locale $(FSDK_VERSION); true
+	flatpak install --arch=$(ARCH) $(ARGS) flathub org.freedesktop.Sdk.Locale $(FSDK_VERSION); true
+	flatpak install --arch=$(ARCH) $(ARGS) flathub org.freedesktop.Platform $(FSDK_VERSION); true
+	flatpak install --arch=$(ARCH) $(ARGS) flathub org.freedesktop.Sdk $(FSDK_VERSION); true
+	flatpak install --arch=$(ARCH) $(ARGS) flathub org.freedesktop.Sdk.Debug $(FSDK_VERSION); true
+	flatpak install --arch=$(ARCH) $(ARGS) flathub org.freedesktop.Sdk.Docs $(FSDK_VERSION); true
 
 check:
 	json-glib-validate *.json
 
 %.clean: %.json
 	json-glib-validate $<
 	flatpak-builder --force-clean --arch=$(ARCH) --download-only ${EXPORT_ARGS} app $<
 
 clean:
 	rm -rf $(TMP) .flatpak-builder