diff --git a/srcpkgs/libsidplayfp/template b/srcpkgs/libsidplayfp/template
index 20bf19252de..49cd457c105 100644
--- a/srcpkgs/libsidplayfp/template
+++ b/srcpkgs/libsidplayfp/template
@@ -11,7 +11,7 @@ distfiles="${SOURCEFORGE_SITE}/sidplay-residfp/${pkgname}/${version%.*}/${pkgnam
 checksum=aa81272ff2093d712041d1bba3f7c9e2f654ed5db4e0a698e3d3c3c5dad26192
 
 case "$XBPS_TARGET_MACHINE" in
-	*-musl) CXXFLAGS="-Duint=unsigned" ;;
+	*-musl) CXXFLAGS="-Duint=unsigned"; configure_args="ac_cv_sizeof_int=4";;
 esac
 
 libsidplayfp-devel_package() {