diff --git a/common/include/villas/utils.hpp b/common/include/villas/utils.hpp
index 390f7b19c..b306b8828 100644
--- a/common/include/villas/utils.hpp
+++ b/common/include/villas/utils.hpp
@@ -104,6 +104,7 @@
 #define MIN(a, b)	({ __typeof__ (a) _a = (a); \
 			   __typeof__ (b) _b = (b); \
 			   _a < _b ? _a : _b; })
+#define MIN3(a, b, c)	MIN(MIN((a),  (b)), (c))
 
 #ifndef offsetof
   #define offsetof(type, member)  __builtin_offsetof(type, member)
diff --git a/common/lib/utils.cpp b/common/lib/utils.cpp
index 9314ff12c..373279156 100644
--- a/common/lib/utils.cpp
+++ b/common/lib/utils.cpp
@@ -380,7 +380,7 @@ bool isPrivileged() {
 
 	fclose(f);
 
-	return 0;
+	return true;
 }
 
 } /* namespace utils */