diff --git a/nix/libutil/util.hh b/nix/libutil/util.hh
index 8fa1efbf37..e84d64d10a 100644
--- a/nix/libutil/util.hh
+++ b/nix/libutil/util.hh
@@ -153,8 +153,8 @@ void printMsg_(Verbosity level, const FormatOrString & fs);
 
 #define printMsg(level, f) \
     do { \
-        if (level <= verbosity) { \
-            printMsg_(level, (f)); \
+        if (level <= nix::verbosity) { \
+            nix::printMsg_(level, (f)); \
         } \
     } while (0)