diff --git a/srcpkgs/zynaddsubfx/patches/musl-isnan.patch b/srcpkgs/zynaddsubfx/patches/musl-isnan.patch
deleted file mode 100644
index a672f84f095..00000000000
--- a/srcpkgs/zynaddsubfx/patches/musl-isnan.patch
+++ /dev/null
@@ -1,15 +0,0 @@
---- src/DSP/FFTwrapper.h	2015-06-28 00:25:59.000000000 +0200
-+++ src/DSP/FFTwrapper.h	2015-10-03 16:51:40.456350543 +0200
-@@ -58,10 +58,10 @@
- FFTpolar(const _Tp& __rho, const _Tp& __theta = _Tp(0))
- {
-         _Tp __x = __rho * cos(__theta);
--        if (isnan(__x))
-+        if (std::isnan(__x))
-                 __x = 0;
-         _Tp __y = __rho * sin(__theta);
--        if (isnan(__y))
-+        if (std::isnan(__y))
-                 __y = 0;
-         return std::complex<_Tp>(__x, __y);
- }
diff --git a/srcpkgs/zynaddsubfx/template b/srcpkgs/zynaddsubfx/template
index 0033a8c4154..3d24ac9e182 100644
--- a/srcpkgs/zynaddsubfx/template
+++ b/srcpkgs/zynaddsubfx/template
@@ -1,6 +1,6 @@
 # Template file for 'zynaddsubfx'
 pkgname=zynaddsubfx
-version=2.5.3
+version=2.5.4
 revision=1
 build_style=cmake
 nocross=yes
@@ -14,7 +14,7 @@ maintainer="Jürgen Buchmüller <pullmoll@t-online.de>"
 license="GPL-2"
 homepage="http://zynaddsubfx.sourceforge.net/"
 distfiles="${SOURCEFORGE_SITE}/${pkgname}/${pkgname}/${version}/${pkgname}-${version}.tar.bz2"
-checksum=ebed173107cb5419806c8ab8628fc38146bde45aead46d2a2feedc142e29aa11
+checksum=014b1d9ad1750c310369676b46a4555ba6bec512c38ccba17ceb89c78552949a
 
 pre_configure() {
 	case "${XBPS_TARGET_MACHINE}" in