diff --git a/mock/py/mockbuild/backend.py b/mock/py/mockbuild/backend.py
index 5f9a986ad..1c86504ed 100644
--- a/mock/py/mockbuild/backend.py
+++ b/mock/py/mockbuild/backend.py
@@ -721,11 +721,12 @@ def get_command(mode):
         max_loops = int(self.config.get('dynamic_buildrequires_max_loops'))
         success = False
         if dynamic_buildrequires and self.config.get('dynamic_buildrequires'):
-            while not success or max_loops > 0:
+            while not success and max_loops > 0:
                 # run rpmbuild+installSrpmDeps until
                 # * it fails
                 # * installSrpmDeps does nothing
                 # * or we run out of dynamic_buildrequires_max_loops tries
+                packages_before = self.buildroot.all_chroot_packages()
                 try:
                     self.buildroot.doChroot(get_command(['-br']),
                                             shell=False, logger=self.buildroot.build_log, timeout=timeout,
@@ -743,6 +744,9 @@ def get_command(mode):
                     self.buildroot.root_log.info("Going to install missing buildrequires")
                     buildreqs = glob.glob(bd_out + '/SRPMS/*.buildreqs.nosrc.rpm')
                     self.installSrpmDeps(*buildreqs)
+                    packages_after = self.buildroot.all_chroot_packages()
+                    if packages_after == packages_before:
+                        success = True
                     for f_buildreqs in buildreqs:
                         os.remove(f_buildreqs)
                     if not sc:
diff --git a/mock/py/mockbuild/buildroot.py b/mock/py/mockbuild/buildroot.py
index 0f4104db2..b55e54b07 100644
--- a/mock/py/mockbuild/buildroot.py
+++ b/mock/py/mockbuild/buildroot.py
@@ -207,6 +207,12 @@ def doChroot(self, command, nosync=False, *args, **kargs):
             self.uid_manager.restorePrivs()
         return result
 
+    def all_chroot_packages(self):
+        """package set, result of rpm -qa in the buildroot"""
+        out, _ = self.doChroot([self.config['rpm_command'], "-qa"],
+                               returnOutput=True, printOutput=False, shell=False)
+        return set(out.splitlines())
+
     @traceLog()
     def _copy_config(self, filename):
         etcdir = self.make_chroot_path('etc')