diff --git a/pacman/PKGBUILD b/pacman/PKGBUILD
index c35e984e..ea94bafd 100644
--- a/pacman/PKGBUILD
+++ b/pacman/PKGBUILD
@@ -4,7 +4,7 @@
 
 pkgname=pacman
 pkgver=6.0.0
-pkgrel=3
+pkgrel=4
 pkgdesc="A library-based package manager with dependency support (MSYS2 port)"
 arch=('i686' 'x86_64')
 url="https://www.archlinux.org/pacman/"
@@ -42,6 +42,7 @@ source=(pacman-${pkgver}::git+https://git.archlinux.org/pacman.git#commit=${_com
         "makepkg.conf"
         "makepkg_mingw.conf"
         "makepkg-mingw"
+        "fix-sig-download-name.patch"
         0001-Msysize.patch
         0002-More-debugging-info.patch
         0003-Core-update.patch
@@ -67,6 +68,7 @@ sha256sums=('SKIP'
             'ee9f8a5ec60a1334725adb102f531f38badfe1bb66bde82c4aeb3131a2becc2f'
             '49452621003656e5ad09c5ed38d37f62187ede8b6456a2ba2919846b430dfb74'
             '2bd27c3fc5443b367e5025c9b9a35670b02202e48e92eead90755fef8d08fa83'
+            '3687b6ed122d607fc549c0ec2fc29b61e7da246fd42443680e442e8526a18ab2'
             '6dd930f5da349959deb128b0fa875da11184df90afe250a51862b39beffd1240'
             '4986792235e02c62316d974e47059bcf1223c4a2d86efa1eb56d8ef6993988ad'
             'd35854bf5a14984ddb57a36be6f4e9ac62748fa2bf10c8f844a8eb17402e8839'
@@ -101,6 +103,9 @@ prepare() {
   git config core.symlinks true
   git reset HEAD --hard
 
+  # https://bugs.archlinux.org/task/71274#comment200612
+  patch -Np1 -i "${srcdir}/fix-sig-download-name.patch"
+
  apply_git_am_with_msg 0001-Msysize.patch \
   0002-More-debugging-info.patch \
   0003-Core-update.patch \
diff --git a/pacman/fix-sig-download-name.patch b/pacman/fix-sig-download-name.patch
new file mode 100644
index 00000000..3d9d7a8a
--- /dev/null
+++ b/pacman/fix-sig-download-name.patch
@@ -0,0 +1,43 @@
+diff --git a/lib/libalpm/dload.c b/lib/libalpm/dload.c
+index 2c14841f..ca6be7b6 100644
+--- a/lib/libalpm/dload.c
++++ b/lib/libalpm/dload.c
+@@ -614,6 +614,7 @@ static int curl_check_finished_download(CURLM *curlm, CURLMsg *msg,
+ 	if(!payload->signature && payload->download_signature && curlerr == CURLE_OK && payload->respcode < 400) {
+ 		struct dload_payload *sig = NULL;
+ 
++		const char* realname = payload->destfile_name ? payload->destfile_name : payload->tempfile_name;
+ 		int len = strlen(effective_url) + 5;
+ 		CALLOC(sig, 1, sizeof(*sig), GOTO_ERR(handle, ALPM_ERR_MEMORY, cleanup));
+ 		MALLOC(sig->fileurl, len, FREE(sig); GOTO_ERR(handle, ALPM_ERR_MEMORY, cleanup));
+@@ -623,13 +624,18 @@ static int curl_check_finished_download(CURLM *curlm, CURLMsg *msg,
+ 			/* In this case server might provide a new name for the main payload.
+ 			 * Choose *.sig filename based on this new name.
+ 			 */
+-			const char* realname = payload->destfile_name ? payload->destfile_name : payload->tempfile_name;
+ 			const char *final_file = get_filename(realname);
+ 			int remote_name_len = strlen(final_file) + 5;
+ 			MALLOC(sig->remote_name, remote_name_len, FREE(sig->fileurl); FREE(sig); GOTO_ERR(handle, ALPM_ERR_MEMORY, cleanup));
+ 			snprintf(sig->remote_name, remote_name_len, "%s.sig", final_file);
+ 		}
+ 
++		/* force the filename to be realname + ".sig" */
++		int destfile_name_len = strlen(realname) + 5;
++		MALLOC(sig->destfile_name, destfile_name_len, FREE(sig->remote_name);
++				FREE(sig->fileurl); FREE(sig); GOTO_ERR(handle, ALPM_ERR_MEMORY, cleanup));
++		snprintf(sig->destfile_name, destfile_name_len, "%s.sig", realname);
++
+ 		sig->signature = 1;
+ 		sig->handle = handle;
+ 		sig->force = payload->force;
+@@ -762,7 +768,9 @@ static int curl_add_payload(alpm_handle_t *handle, CURLM *curlm,
+ 	}
+ 
+ 	if(payload->remote_name && strlen(payload->remote_name) > 0) {
+-		payload->destfile_name = get_fullpath(localpath, payload->remote_name, "");
++		if(!payload->destfile_name) {
++			payload->destfile_name = get_fullpath(localpath, payload->remote_name, "");
++		}
+ 		payload->tempfile_name = get_fullpath(localpath, payload->remote_name, ".part");
+ 		if(!payload->destfile_name || !payload->tempfile_name) {
+ 			goto cleanup;
\ No newline at end of file