diff --git a/cmd/prometheus/main.go b/cmd/prometheus/main.go
index 6842832c6..d1563b1d5 100644
--- a/cmd/prometheus/main.go
+++ b/cmd/prometheus/main.go
@@ -428,7 +428,11 @@ func main() {
 	// Throw error for invalid config before starting other components.
 	var cfgFile *config.Config
 	if cfgFile, err = config.LoadFile(cfg.configFile, agentMode, false, log.NewNopLogger()); err != nil {
-		level.Error(logger).Log("msg", fmt.Sprintf("Error loading config (--config.file=%s)", cfg.configFile), "err", err)
+		absPath, pathErr := filepath.Abs(cfg.configFile)
+		if pathErr != nil {
+			absPath = cfg.configFile
+		}
+		level.Error(logger).Log("msg", fmt.Sprintf("Error loading config (--config.file=%s)", cfg.configFile), "file", absPath, "err", err)
 		os.Exit(2)
 	}
 	if cfg.tsdb.EnableExemplarStorage {
diff --git a/promql/query_logger.go b/promql/query_logger.go
index ecf93765c..2c324fb90 100644
--- a/promql/query_logger.go
+++ b/promql/query_logger.go
@@ -83,7 +83,11 @@ func logUnfinishedQueries(filename string, filesize int, logger log.Logger) {
 func getMMapedFile(filename string, filesize int, logger log.Logger) ([]byte, error) {
 	file, err := os.OpenFile(filename, os.O_CREATE|os.O_RDWR|os.O_TRUNC, 0o666)
 	if err != nil {
-		level.Error(logger).Log("msg", "Error opening query log file", "file", filename, "err", err)
+		absPath, pathErr := filepath.Abs(filename)
+		if pathErr != nil {
+			absPath = filename
+		}
+		level.Error(logger).Log("msg", "Error opening query log file", "file", absPath, "err", err)
 		return nil, err
 	}