diff --git a/libotr/PKGBUILD b/libotr/PKGBUILD
index 0a434be44c..cd11de08ae 100644
--- a/libotr/PKGBUILD
+++ b/libotr/PKGBUILD
@@ -6,12 +6,19 @@
 
 pkgname=libotr
 pkgver=4.1.1
-pkgrel=4
+pkgrel=5
 pkgdesc='Off-the-Record Messaging Library and Toolkit'
 url='https://otr.cypherpunks.ca/'
-license=('GPL' 'LGPL')
+license=(
+  'GPL-2.0-only'
+  'LGPL-2.1-only'
+)
 arch=(x86_64 powerpc64le powerpc64 powerpc riscv64)
-depends=('libgcrypt')
+depends=(
+  'glibc'
+  'libgcrypt'
+  'libgpg-error'
+)
 validpgpkeys=('22DF3305DF56667CE15784FCF24DE08F42C2ABAD') # OTR Dev Team
 source=(https://otr.cypherpunks.ca/${pkgname}-${pkgver}.tar.gz{,.asc}
         "$pkgname-4.1.1-include-socket.h.patch")
@@ -20,13 +27,18 @@ sha256sums=('8b3b182424251067a952fb4e6c7b95a21e644fbb27fbd5f8af2b2ed87ca419f5'
             'cfda75f8c5bba2e735d2b4f1bb90f60b45fa1d554a97fff75cac467f7873ebde')
 
 prepare() {
-    # FS#75450
-    patch -d "$pkgname-$pkgver" -N -p 1 -i "${srcdir}/$pkgname-4.1.1-include-socket.h.patch"
+  # FS#75450
+  patch -d "$pkgname-$pkgver" -N -p 1 -i "${srcdir}/$pkgname-4.1.1-include-socket.h.patch"
+
+  cd "${srcdir}/${pkgname}-${pkgver}"
+  autoreconf -fiv
 }
 
 build() {
   cd "${srcdir}/${pkgname}-${pkgver}"
-  ./configure --prefix=/usr --mandir=/usr/share/man --build=${CHOST}
+  # --disable-gcc-hardening: Arch Linux already passes more strict CFLAGS to all builds,
+  # libotr tries to pass _FORTIFY_SOURCE=2, but Arch Linux has _FORTIFY_SOURCE=3
+  ./configure --build=${CHOST} --prefix=/usr --mandir=/usr/share/man --disable-gcc-hardening
   make
 }