diff --git a/Makefile b/Makefile
index 7a988cd..057006f 100644
--- a/Makefile
+++ b/Makefile
@@ -71,12 +71,12 @@ linux: config.make
 
 .PHONY: prebuilt32
 prebuilt32: config.make pluginloader-$(git_commit).tar.gz pluginloader-$(git_commit).tar.gz.sig
-	$(gpg_exec) --batch --no-default-keyring --keyring "share/sig-pluginloader.gpg" --verify "pluginloader-$(git_commit).tar.gz.sig"
+	$(gpg_exec) --batch --no-default-keyring --keyring "share/sig-pluginloader.gpg" --verify "pluginloader-$(git_commit).tar.gz.sig" "pluginloader-$(git_commit).tar.gz"
 	tar -xvf "pluginloader-$(git_commit).tar.gz" src/windows/pluginloader/pluginloader.exe src/windows/winecheck/winecheck.exe
 
 .PHONY: prebuilt64
 prebuilt64: config.make pluginloader-$(git_commit).tar.gz pluginloader-$(git_commit).tar.gz.sig
-	$(gpg_exec) --batch --no-default-keyring --keyring "share/sig-pluginloader.gpg" --verify "pluginloader-$(git_commit).tar.gz.sig"
+	$(gpg_exec) --batch --no-default-keyring --keyring "share/sig-pluginloader.gpg" --verify "pluginloader-$(git_commit).tar.gz.sig" "pluginloader-$(git_commit).tar.gz"
 	tar -xvf "pluginloader-$(git_commit).tar.gz" src/windows/pluginloader/pluginloader64.exe src/windows/winecheck/winecheck64.exe
 
 .PHONY: windows32