diff --git a/libs/cputimeinstate/cputimeinstate.cpp b/libs/cputimeinstate/cputimeinstate.cpp
index 4209dc5..22103d5 100644
--- a/libs/cputimeinstate/cputimeinstate.cpp
+++ b/libs/cputimeinstate/cputimeinstate.cpp
@@ -98,7 +98,7 @@
     struct dirent **dirlist;
     const char basepath[] = "/sys/devices/system/cpu/cpufreq";
     int ret = scandir(basepath, &dirlist, isPolicyFile, comparePolicyFiles);
-    if (ret == -1) return false;
+    if (ret == -1 || ret == 0) return false;
     gNPolicies = ret;
 
     std::vector<std::string> policyFileNames;