diff --git a/private/rules/maven_bom_fragment.bzl b/private/rules/maven_bom_fragment.bzl
index 9c3c2d263..97e980cae 100644
--- a/private/rules/maven_bom_fragment.bzl
+++ b/private/rules/maven_bom_fragment.bzl
@@ -12,9 +12,11 @@ MavenBomFragmentInfo = provider(
 )
 
 def _maven_bom_fragment_impl(ctx):
+    # Expand maven coordinates for any variables to be replaced.
+    coordinates = ctx.attr.maven_coordinates.format(**ctx.var)
     return [
         MavenBomFragmentInfo(
-            coordinates = ctx.attr.maven_coordinates,
+            coordinates = coordinates,
             artifact = ctx.file.artifact,
             srcs = ctx.file.src_artifact,
             javadocs = ctx.file.javadoc_artifact,
diff --git a/private/rules/pom_file.bzl b/private/rules/pom_file.bzl
index 1ca74f2ce..1cea8486a 100644
--- a/private/rules/pom_file.bzl
+++ b/private/rules/pom_file.bzl
@@ -8,9 +8,10 @@ def _pom_file_impl(ctx):
 
     info = ctx.attr.target[MavenInfo]
 
+    coordinates = info.coordinates.format(**ctx.var)
     out = generate_pom(
         ctx,
-        coordinates = info.coordinates,
+        coordinates = coordinates,
         versioned_dep_coordinates = sorted(info.maven_deps.to_list()),
         pom_template = ctx.file.pom_template,
         out_name = "%s.xml" % ctx.label.name,