diff --git a/alma_sbom/data/collectors/immudb/processor/apiver02.py b/alma_sbom/data/collectors/immudb/processor/apiver02.py
index 7b4fff5..b437d88 100644
--- a/alma_sbom/data/collectors/immudb/processor/apiver02.py
+++ b/alma_sbom/data/collectors/immudb/processor/apiver02.py
@@ -30,7 +30,7 @@ def get_package(self) -> Package:
             name = self.immudb_metadata.get('name'),
             version = self.immudb_metadata.get('version'),
             release = self.immudb_metadata.get('release'),
-            arch = self.immudb_metadata.get('arch'),
+            arch = self._resolve_arch(),
         )
         pkg_props, build_props, sbom_props = self._properties_from_immudb_info_about_package()
 
@@ -57,7 +57,7 @@ def _properties_from_immudb_info_about_package(self) -> tuple[
             epoch = normalize_epoch(self.immudb_metadata['epoch']) if 'epoch' in self.immudb_metadata else None,
             version=self.immudb_metadata.get('version'),
             release=self.immudb_metadata.get('release'),
-            arch=self.immudb_metadata.get('arch'),
+            arch=self._resolve_arch(),
             buildhost=self.immudb_metadata.get('build_host'),
             sourcerpm=self.immudb_metadata.get('sourcerpm'),
             timestamp=self.immudb_info.get('timestamp'),
diff --git a/alma_sbom/data/collectors/immudb/processor/processor.py b/alma_sbom/data/collectors/immudb/processor/processor.py
index 720c706..0ec3900 100644
--- a/alma_sbom/data/collectors/immudb/processor/processor.py
+++ b/alma_sbom/data/collectors/immudb/processor/processor.py
@@ -13,6 +13,17 @@ def __init__(self, immudb_info: dict, immudb_metadata: dict, hash: Hash):
         self.immudb_metadata = immudb_metadata
         self.hash = hash
 
+    def _resolve_arch(self) -> str:
+        """Return corrected arch for source RPMs.
+
+        immudb metadata may store the builder machine arch (e.g. x86_64)
+        instead of 'src' for SRPMs.  Use build_arch and the Name field
+        as authoritative signals to fix this.
+        """
+        if self.immudb_metadata.get('build_arch') == 'src' or self.immudb_info.get('Name', '').endswith('.src.rpm'):
+            return 'src'
+        return self.immudb_metadata.get('arch')
+
     @abstractmethod
     def get_api_ver(self) -> str:
         pass