diff --git a/poky/meta/classes/base.bbclass b/poky/meta/classes/base.bbclass
index 5f4956a..9f1bfe8 100644
--- a/poky/meta/classes/base.bbclass
+++ b/poky/meta/classes/base.bbclass
@@ -12,7 +12,7 @@
 
 OE_EXTRA_IMPORTS ?= ""
 
-OE_IMPORTS += "os sys time oe.path oe.utils oe.types oe.package oe.packagegroup oe.sstatesig oe.lsb oe.cachedpath oe.license oe.qa oe.reproducible ${OE_EXTRA_IMPORTS}"
+OE_IMPORTS += "os sys time oe.path oe.utils oe.types oe.package oe.packagegroup oe.sstatesig oe.lsb oe.cachedpath oe.license oe.qa oe.reproducible oe.rust ${OE_EXTRA_IMPORTS}"
 OE_IMPORTS[type] = "list"
 
 PACKAGECONFIG_CONFARGS ??= ""
diff --git a/poky/meta/classes/rust-common.bbclass b/poky/meta/classes/rust-common.bbclass
index 98d6597..8cfe864 100644
--- a/poky/meta/classes/rust-common.bbclass
+++ b/poky/meta/classes/rust-common.bbclass
@@ -65,7 +65,7 @@
     if thing == "TARGET" and target_is_armv7(d):
         arch = "armv7"
     else:
-        arch = d.getVar('{}_ARCH'.format(thing))
+        arch = oe.rust.arch_to_rust_arch(d.getVar('{}_ARCH'.format(thing)))
 
     # All the Yocto targets are Linux and are 'unknown'
     vendor = "-unknown"
diff --git a/poky/meta/lib/oe/rust.py b/poky/meta/lib/oe/rust.py
new file mode 100644
index 0000000..ec70b34
--- /dev/null
+++ b/poky/meta/lib/oe/rust.py
@@ -0,0 +1,5 @@
+# Handle mismatches between `uname -m`-style output and Rust's arch names
+def arch_to_rust_arch(arch):
+    if arch == "ppc64le":
+        return "powerpc64le"
+    return arch
diff --git a/poky/meta/recipes-devtools/rust/rust-common.inc b/poky/meta/recipes-devtools/rust/rust-common.inc
index ceeee97..310aece 100644
--- a/poky/meta/recipes-devtools/rust/rust-common.inc
+++ b/poky/meta/recipes-devtools/rust/rust-common.inc
@@ -313,10 +313,12 @@
     sys = sys_for(d, thing)
     prefix = prefix_for(d, thing)
 
+    rust_arch = oe.rust.arch_to_rust_arch(arch)
+
     if abi:
-        arch_abi = "{}-{}".format(arch, abi)
+        arch_abi = "{}-{}".format(rust_arch, abi)
     else:
-        arch_abi = arch
+        arch_abi = rust_arch
 
     features = features or d.getVarFlag('FEATURES', arch_abi) or ""
     features = features.strip()
@@ -329,7 +331,7 @@
     tspec['target-pointer-width'] = d.getVarFlag('TARGET_POINTER_WIDTH', arch_abi)
     tspec['target-c-int-width'] = d.getVarFlag('TARGET_C_INT_WIDTH', arch_abi)
     tspec['target-endian'] = d.getVarFlag('TARGET_ENDIAN', arch_abi)
-    tspec['arch'] = arch_to_rust_target_arch(arch)
+    tspec['arch'] = arch_to_rust_target_arch(rust_arch)
     tspec['os'] = "linux"
     if "musl" in tspec['llvm-target']:
         tspec['env'] = "musl"