diff --git a/doc/source/admin/special_topics/mulled_containers.rst b/doc/source/admin/special_topics/mulled_containers.rst
index 7654fe86a70..eb5679427dc 100644
--- a/doc/source/admin/special_topics/mulled_containers.rst
+++ b/doc/source/admin/special_topics/mulled_containers.rst
@@ -350,7 +350,7 @@ Build options:
 
 ``--target-platform``
   Target platform for cross-architecture builds.
-  Choices: ``linux/amd64``, ``linux/arm64``, ``linux/arm/v7``, ``linux/ppc64le``.
+  Choices: ``linux/amd64``, ``linux/arm64``, ``linux/arm/v7``, ``linux/ppc64le``, ``linux/riscv64``.
   Requires binfmt/QEMU support on the Docker daemon host.
   Cannot be combined with ``--singularity``.
 
diff --git a/lib/galaxy/tool_util/deps/mulled/mulled_build.py b/lib/galaxy/tool_util/deps/mulled/mulled_build.py
index 62720fd0d58..65de6a841a2 100644
--- a/lib/galaxy/tool_util/deps/mulled/mulled_build.py
+++ b/lib/galaxy/tool_util/deps/mulled/mulled_build.py
@@ -86,6 +86,7 @@ DOCKER_TO_CONDA_PLATFORM = {
     "linux/arm64": "linux-aarch64",
     "linux/arm/v7": "linux-armv7l",
     "linux/ppc64le": "linux-ppc64le",
+    "linux/riscv64": "linux-riscv64",
 }
 MACHINE_TO_DOCKER_PLATFORM = {
     "x86_64": "linux/amd64",
@@ -94,6 +95,7 @@ MACHINE_TO_DOCKER_PLATFORM = {
     "arm64": "linux/arm64",
     "armv7l": "linux/arm/v7",
     "ppc64le": "linux/ppc64le",
+    "riscv64": "linux/riscv64",
 }
 
 SINGULARITY_TEMPLATE = """Bootstrap: docker