js.go  |  6 +++---
 run.go | 10 +++++-----

diff --git a/js.go b/js.go
index a73b6ed4fba69afadfc34ca12315be2ff760b3977e52149339ca5466e2d04987..46f7434be2d0ebe53891419a57b94ca978ea9de581eed220f682628126e84926 100644
--- a/js.go
+++ b/js.go
@@ -179,7 +179,7 @@ func jsRelease(ctx string, token byte) {
 	if JSW == nil {
 		return
 	}
-	tracef(CJS, "release from %s", ctx)
+	tracef(CJS, "release from: %s", ctx)
 	jsTokensM.Lock()
 	jsTokens[token]--
 	jsReleaseNoLock(token)
@@ -200,7 +200,7 @@ func jsAcquire(ctx string) byte {
 	if JSR == nil {
 		return BMakeGoodToken
 	}
-	tracef(CJS, "acquire for %s", ctx)
+	tracef(CJS, "acquire for: %s", ctx)
 	token := []byte{0}
 	if n, err := JSR.Read(token); err != nil || n != 1 {
 		log.Fatalln("can not read JSR:", err)
@@ -208,6 +208,6 @@ 	}
 	jsTokensM.Lock()
 	jsTokens[token[0]]++
 	jsTokensM.Unlock()
-	tracef(CJS, "acquired for %s", ctx)
+	tracef(CJS, "acquired for: %s", ctx)
 	return token[0]
 }
diff --git a/run.go b/run.go
index 40816e1bf9fcf01524ff4fe151d41c20aeb042ed408477c850ff6aea92b43839..43ebcfefbfd8d60ccb54cd3451d5481b3518ca4281a0ff118d07e99bf2d71f57 100644
--- a/run.go
+++ b/run.go
@@ -291,7 +291,7 @@ 		if StopIfMod {
 			return fmt.Errorf("%s externally modified", tgt)
 		}
 		Jobs.Add(1)
-		tracef(CWarn, "%s externally modified: not redoing", tgt)
+		tracef(CWarn, "%s: externally modified: not redoing", tgt)
 		go func() {
 			errs <- nil
 			Jobs.Done()
@@ -304,7 +304,7 @@ 		if StopIfMod {
 			return fmt.Errorf("%s already existing", tgt)
 		}
 		Jobs.Add(1)
-		tracef(CWarn, "%s already existing: not redoing", tgt)
+		tracef(CWarn, "%s: already existing: not redoing", tgt)
 		go func() {
 			errs <- nil
 			Jobs.Done()
@@ -635,7 +635,7 @@ 		RunningProcsM.Lock()
 		RunningProcs[cmd.Process.Pid] = cmd.Process
 		RunningProcsM.Unlock()
 		pid := fmt.Sprintf("[%d]", cmd.Process.Pid)
-		tracef(CDebug, "%s runs %s", tgt, pid)
+		tracef(CDebug, "%s: runs %s", tgt, pid)
 
 		stderrTerm := make(chan struct{})
 		go func() {
@@ -765,7 +765,7 @@ 					err = ErrLine(err)
 					goto Finish
 				}
 				if hsh == hshPrev {
-					tracef(CDebug, "%s has same hash, not renaming", tgt)
+					tracef(CDebug, "%s: has same hash, not renaming", tgt)
 					err = ErrLine(os.Remove(fd.Name()))
 					if err != nil {
 						goto Finish
@@ -850,7 +850,7 @@ 				ifchangeSeen[ifchange.tgt.a] = struct{}{}
 			}
 			for _, ifcreate := range dep.ifcreates {
 				if _, exists := ifchangeSeen[ifcreate.a]; exists {
-					tracef(CWarn, "simultaneous ifcreate and ifchange records: %s", tgt)
+					tracef(CWarn, "%s: simultaneous ifcreate and ifchange records", tgt)
 				}
 			}
 		} else if errors.Is(err, fs.ErrNotExist) {