diff --git a/toolchains/amigaos4/Dockerfile.m4 b/toolchains/amigaos4/Dockerfile.m4
index fcdebfe..c561dca 100644
--- a/toolchains/amigaos4/Dockerfile.m4
+++ b/toolchains/amigaos4/Dockerfile.m4
@@ -75,7 +75,6 @@ local_package(codesets)
 local_package(libopenssl)
 
 # Needed by precompiled libcurl
-local_package(pthreads)
 local_package(librtmp)
 
 local_package(libcurl)
diff --git a/toolchains/amigaos4/packages/pthreads/build.sh b/toolchains/amigaos4/packages/pthreads/build.sh
deleted file mode 100755
index 817f812..0000000
--- a/toolchains/amigaos4/packages/pthreads/build.sh
+++ /dev/null
@@ -1,13 +0,0 @@
-#! /bin/sh
-
-PACKAGE_DIR=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
-HELPERS_DIR=$PACKAGE_DIR/../..
-. $HELPERS_DIR/functions.sh
-
-do_make_bdir
-
-do_lha_fetch misc/pthreads "SDK"
-
-do_lha_install
-
-do_clean_bdir
diff --git a/toolchains/amigaos4/packages/toolchain/build.sh b/toolchains/amigaos4/packages/toolchain/build.sh
index 0726d4e..16c804c 100755
--- a/toolchains/amigaos4/packages/toolchain/build.sh
+++ b/toolchains/amigaos4/packages/toolchain/build.sh
@@ -27,6 +27,8 @@ HOME="$(pwd)" gild/bin/gild checkout gcc "${GCC_VER}"
 
 do_make -C native-build gcc-cross
 
+do_make -C native-build additionals-libs
+
 # Fix missing rights for library files
 chmod -R go+rX "${CROSS_PREFIX}"
 
diff --git a/toolchains/amigaos4/packages/toolchain/patches/fix-additional-libs.patch b/toolchains/amigaos4/packages/toolchain/patches/fix-additional-libs.patch
new file mode 100644
index 0000000..4e9b13c
--- /dev/null
+++ b/toolchains/amigaos4/packages/toolchain/patches/fix-additional-libs.patch
@@ -0,0 +1,19 @@
+commit dc599576c9238edcfb92fe3efe023205c3e49544
+Author: Le Philousophe <lephilousophe@users.noreply.github.com>
+Date:   Tue May 11 18:53:22 2021 +0200
+
+    Fix additional libs for SDK 53.30
+
+diff --git a/native-build/makefile b/native-build/makefile
+index 7cab4f4..05b2c4f 100644
+--- a/native-build/makefile
++++ b/native-build/makefile
+@@ -205,7 +205,7 @@ additionals-libs:
+ 	mkdir -p $(CROSS_PREFIX)/ppc-amigaos/SDK/local/common/include
+ 	mkdir -p /tmp/abcd
+ 	cd downloads && lha xw=/tmp/abcd SDK_$(SDK_VERSION).lha
+-	cd /tmp/abcd/SDK_Install && lha x pthread.lha && lha x zlib-1.2.3.lha
++	cd /tmp/abcd/SDK_Install && lha x pthreads-53.11.lha
+ 	cp -Rf /tmp/abcd/SDK_Install/Local/* $(CROSS_PREFIX)/ppc-amigaos/SDK/local
+ 	rm -Rf /tmp/abcd
+