diff --git a/rust/agama-software/src/model/registration.rs b/rust/agama-software/src/model/registration.rs
index e86456cad8..9ce1b67480 100644
--- a/rust/agama-software/src/model/registration.rs
+++ b/rust/agama-software/src/model/registration.rs
@@ -60,6 +60,7 @@ pub struct Registration {
     root_dir: Utf8PathBuf,
     product: String,
     version: String,
+    arch: Arch,
     // The connection parameters are kept because they are needed by the
     // `to_registration_info` function.
     connect_params: ConnectParams,
@@ -109,7 +110,7 @@ impl Registration {
         version: &str,
         code: Option<&str>,
     ) -> RegistrationResult<()> {
-        let product = Self::product_specification(name, version);
+        let product = Self::product_specification(name, version, self.arch);
         let mut params = self.connect_params.clone();
         params.token = code.map(ToString::to_string);
 
@@ -203,12 +204,15 @@ impl Registration {
     }
 
     fn base_product_specification(&self) -> suseconnect_agama::ProductSpecification {
-        Self::product_specification(&self.product, &self.version)
+        Self::product_specification(&self.product, &self.version, self.arch)
     }
 
-    fn product_specification(id: &str, version: &str) -> suseconnect_agama::ProductSpecification {
+    fn product_specification(
+        id: &str,
+        version: &str,
+        arch: Arch,
+    ) -> suseconnect_agama::ProductSpecification {
         // We do not expect this to happen.
-        let arch = Arch::current().expect("Failed to determine the architecture");
         suseconnect_agama::ProductSpecification {
             identifier: id.to_string(),
             arch: arch.to_string(),
@@ -308,7 +312,8 @@ impl RegistrationBuilder {
         };
         // https://github.com/agama-project/agama/blob/master/service/lib/agama/registration.rb#L294
         let version = self.version.split(".").next().unwrap_or("1");
-        let target_distro = format!("{}-{}-{}", &self.product, version, std::env::consts::ARCH);
+        let arch = Arch::current().expect("Failed to determine the architecture");
+        let target_distro = format!("{}-{}-{}", &self.product, version, arch.to_string());
         tracing::debug!("Announcing system {target_distro}");
         let creds = handle_registration_error(
             || suseconnect_agama::announce_system(params.clone(), &target_distro),
@@ -332,6 +337,7 @@ impl RegistrationBuilder {
             connect_params: params,
             product: self.product.clone(),
             version: self.version.clone(),
+            arch,
             creds,
             services: vec![],
             addons: vec![],
diff --git a/rust/agama-utils/src/arch.rs b/rust/agama-utils/src/arch.rs
index 6277657382..aff1872ad3 100644
--- a/rust/agama-utils/src/arch.rs
+++ b/rust/agama-utils/src/arch.rs
@@ -20,8 +20,6 @@
 
 //! Implement support for detecting and converting architeture identifiers.
 
-use std::process::Command;
-
 #[derive(Clone, Copy, Debug, PartialEq, strum::Display, strum::EnumString)]
 #[strum(serialize_all = "lowercase")]
 pub enum Arch {
@@ -42,12 +40,13 @@ pub enum Error {
 impl Arch {
     /// Returns the current architecture.
     pub fn current() -> Result<Self, Error> {
-        let output = Command::new("uname").arg("-m").output()?;
-        let arch_str = String::from_utf8_lossy(&output.stdout).trim().to_string();
-        arch_str
-            .as_str()
-            .try_into()
-            .map_err(|_| Error::Unknown(arch_str))
+        match std::env::consts::ARCH {
+            "aarch64" => Ok(Arch::AARCH64),
+            "powerpc64" => Ok(Arch::PPC64LE),
+            "s390x" => Ok(Arch::S390X),
+            "x86_64" => Ok(Arch::X86_64),
+            _ => Err(Error::Unknown(std::env::consts::ARCH.to_string())),
+        }
     }
 
     /// Returns the identifier used in the products definition.
diff --git a/rust/package/agama.changes b/rust/package/agama.changes
index 3223a53af8..24f444664d 100644
--- a/rust/package/agama.changes
+++ b/rust/package/agama.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri Jan 23 09:53:37 UTC 2026 - Imobach Gonzalez Sosa <igonzalezsosa@suse.com>
+
+- Use the right architecture when regisrering a system in ppc64le
+  (gh#agama-project/agama#3068).
+
 -------------------------------------------------------------------
 Thu Jan 22 16:16:55 UTC 2026 - Imobach Gonzalez Sosa <igonzalezsosa@suse.com>