diff --git a/tests/llvm-test-suite/main.fmf b/tests/llvm-test-suite/main.fmf
index 005d145..eb43cc8 100644
--- a/tests/llvm-test-suite/main.fmf
+++ b/tests/llvm-test-suite/main.fmf
@@ -5,3 +5,4 @@ require:
   - git
   - clang
   - llvm-test-suite
+duration: 1h