diff --git a/module_build_service/scm.py b/module_build_service/scm.py
index fef2d1fc..b7b411af 100644
--- a/module_build_service/scm.py
+++ b/module_build_service/scm.py
@@ -140,10 +140,10 @@ class SCM(object):
             raise RuntimeError("checkout: Unhandled SCM scheme.")
         return sourcedir
 
-    def get_latest(self):
+    def get_latest(self, branch='master'):
         """Get the latest commit ID.
 
-        :returns: str -- the latest commit ID, e.g. the git master HEAD
+        :returns: str -- the latest commit ID, e.g. the git $BRANCH HEAD
         :raises: RuntimeError
         """
         if self.scheme == "git":
@@ -151,13 +151,16 @@ class SCM(object):
             proc = sp.Popen(cmd, stdout=sp.PIPE, stderr=sp.PIPE)
             output, stderr = proc.communicate()
             if proc.returncode != 0:
-                raise RuntimeError("Cannot get git hash of master HEAD in %s"
-                    % self.repository)
+                raise RuntimeError("Cannot get git hash of %s HEAD in %s"
+                    % (branch, self.repository))
             for line in output.split(os.linesep):
-                if line.endswith("\trefs/heads/master"):
+                if line.endswith("\trefs/heads/%s" % branch):
                     return line.split("\t")[0]
-            raise RuntimeError("Couldn't determine the git master HEAD hash in %s"
-                % self.repository)
+
+            # Hopefully `branch` is really a commit hash.  Code later needs to verify this.
+            log.warn("Couldn't determine the git %s HEAD hash in %s."
+                % (branch, self.repository))
+            return branch
         else:
             raise RuntimeError("get_latest: Unhandled SCM scheme.")
 
diff --git a/module_build_service/utils.py b/module_build_service/utils.py
index e2e8a342..cdeab962 100644
--- a/module_build_service/utils.py
+++ b/module_build_service/utils.py
@@ -294,12 +294,18 @@ def submit_module_build(username, url):
                 if not pkg.cache:
                     pkg.cache = conf.rpms_default_cache + pkgname
                 if not pkg.ref:
-                    try:
-                        pkg.ref = module_build_service.scm.SCM(
-                            pkg.repository).get_latest()
-                    except Exception as e:
-                        raise UnprocessableEntity(
-                            "Failed to get the latest commit: %s" % pkgname)
+                    pkg.ref = 'master'
+                try:
+                    # If the modulemd specifies that the 'f25' branch is what
+                    # we want to pull from, we need to resolve that f25 branch
+                    # to the specific commit available at the time of
+                    # submission (now).
+                    pkg.ref = module_build_service.scm.SCM(
+                        pkg.repository).get_latest(branch=pkg.ref)
+                except Exception as e:
+                    raise UnprocessableEntity(
+                        "Failed to get the latest commit for %s#%s" % (
+                            pkgname, pkg.ref))
             except Exception:
                 module.transition(conf, models.BUILD_STATES["failed"])
                 db.session.add(module)