diff --git a/run_tests.go b/run_tests.go
index 28b1ef389..5cfdaa51e 100644
--- a/run_tests.go
+++ b/run_tests.go
@@ -144,10 +144,14 @@ func main() {
 					return nil
 				}
 
-				if specialDir(p) || emptyDir(p) {
+				if specialDir(p) {
 					return filepath.SkipDir
 				}
 
+				if emptyDir(p) {
+					return nil
+				}
+
 				return testPackage(forceRelativeDirname(p), file)
 			})