diff --git a/abrt-java-connector.spec b/abrt-java-connector.spec
index 16a132b..cd8acb9 100644
--- a/abrt-java-connector.spec
+++ b/abrt-java-connector.spec
@@ -50,8 +50,11 @@ logging.
 
 
 %check
-%ctest
-
+cd "%{__cmake_builddir}"
+# Force serial execution of tests to prevent process interleaving which seems to
+# upset abrt-java-connector.
+%{__ctest} --output-on-failure -j1
+cd -
 
 %install
 %cmake_install