diff --git a/Makefile.base b/Makefile.base
index 8864dd5..9c93af4 100644
--- a/Makefile.base
+++ b/Makefile.base
@@ -401,19 +401,18 @@ fix-update:
 
 #@ <version|major|minor|patch[+-]?> # update version and prepare release of the software.
 bump:
-	@if [ -z "$(RUNARGS)" ]; then \
-	  echo "error: missing new version"; exit 1; \
-	elif [[ "$(RUNARGS)" =~ ^(major|minor|patch|[.+-]*)[+-]?$$ ]]; then \
-	  VERSION="$$(awk -v arg=$(RUNARGS) '{ \
+	@if [ -z "$(RUNARGS)" ]; then ARGS="patch"; else ARGS="$(RUNARGS)"; fi; \
+	if [[ "$${ARGS}" =~ ^(major|minor|patch|[.+-]*)[+-]?$$ ]]; then \
+	  VERSION="$$(awk -v arg=$${ARGS} '{ \
 	    op["major"] = 1; op["minor"] = 2; op["patch"] = 3; \
 		if ((pos = op[substr(arg,1,5)]) == 0) { pos = length(arg) }; \
 	    patsplit($$0, v, "[0-9]*", seps); len = length(seps); \
 	    if (arg !~ "-$$") {v[pos]++ } else { v[pos]-- }; \
 	    for (i = 1; i < len; i++) { printf("%d%s", v[i], seps[i]) } \
 	  }' VERSION)"; \
-	elif ! [[ "$(RUNARGS)" =~ ^[0-9]+(\.[0-9]+){0,2}(-.*)?$$ ]]; then \
-	  echo "error: invalid new version [$(RUNARGS)]"; exit 1; \
-	else VERSION="$(RUNARGS)"; fi; echo $${VERSION} >VERSION; \
+	elif ! [[ "$${ARGS}" =~ ^[0-9]+(\.[0-9]+){0,2}(-.*)?$$ ]]; then \
+	  echo "error: invalid new version [$${ARGS}]"; exit 1; \
+	else VERSION="$${ARGS}"; fi; echo $${VERSION} >VERSION; \
 	echo "Bumped version to $${VERSION} for auto release!"; \
 
 
diff --git a/VERSION b/VERSION
index bbdeab6..1750564 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.0.5
+0.0.6
diff --git a/internal/make/fixtures/targets-trace.out b/internal/make/fixtures/targets-trace.out
index d2be8a0..23ec485 100644
--- a/internal/make/fixtures/targets-trace.out
+++ b/internal/make/fixtures/targets-trace.out
@@ -1,4 +1,3 @@
-make[1]: Entering directory 'go-make/internal/make'
 Makefile.base:383: target 'targets' does not exist
 make --no-builtin-rules --no-builtin-variables --print-data-base \
   --question --makefile=Makefile.base 2>/dev/null | \
@@ -170,4 +169,3 @@ update/revive.toml?
 update-tools
 update-vegeta
 update-zally
-make[1]: Leaving directory 'go-make/internal/make'
diff --git a/internal/make/fixtures/targets.out b/internal/make/fixtures/targets.out
index a593868..ab2b651 100644
--- a/internal/make/fixtures/targets.out
+++ b/internal/make/fixtures/targets.out
@@ -1,4 +1,3 @@
-make[1]: Entering directory 'go-make/internal/make'
 all
 all-clean
 build
@@ -162,4 +161,3 @@ update/revive.toml?
 update-tools
 update-vegeta
 update-zally
-make[1]: Leaving directory 'go-make/internal/make'
diff --git a/internal/make/make.go b/internal/make/make.go
index 473d23c..6ad14c1 100644
--- a/internal/make/make.go
+++ b/internal/make/make.go
@@ -254,14 +254,14 @@ func (gm *GoMake) findRevision() (string, error) {
 			CmdGitHashHead()...); err != nil {
 			return "", err
 		}
-		return builder.String(), nil
+		return strings.TrimSpace(builder.String()), nil
 	} else if gm.Info.Version == gm.Info.Revision {
 		builder := strings.Builder{}
 		if err := gm.exec(&builder, gm.Stderr, gm.MakeDir,
 			CmdGitHashTag(gm.Info.Revision)...); err != nil {
 			return "", err
 		}
-		return builder.String(), nil
+		return strings.TrimSpace(builder.String()), nil
 	}
 	return gm.Info.Revision, nil
 }
@@ -275,7 +275,7 @@ func (gm *GoMake) isOnRevision(hash string) (bool, error) {
 		CmdGitHashNow()...); err != nil {
 		return false, err
 	}
-	return strings.HasPrefix(builder.String(), hash), nil
+	return hash == strings.TrimSpace(builder.String()), nil
 }
 
 // makeTargets executes the provided make targets.
diff --git a/internal/make/make_test.go b/internal/make/make_test.go
index 53c4f3a..df67210 100644
--- a/internal/make/make_test.go
+++ b/internal/make/make_test.go
@@ -45,6 +45,8 @@ const (
 	goMakeHTTP = "https://github.com/tkrop/go-make.git"
 	// revisionHead contains an arbitrary head revision.
 	revisionHead = "1b66f320c950b25fa63b81fd4e660c5d1f9d758e"
+	// revisionHeadExt contains an arbitrary untrimmed revision.
+	revisionHeadExt = "1b66f320c950b25fa63b81fd4e660c5d1f9d758e\n"
 	// HeadRevision contains an arbitrary default revision.
 	revisionDefault = "c0a7f81b82937ffe379ac39ece2925fa4d19fd40"
 	// revisionOther contains an arbitrary different revision.
@@ -369,6 +371,39 @@ var testMakeParams = map[string]MakeParams{
 		args:      argsTarget,
 		goMakeDir: goMakeDirNew,
 	},
+	"clone go-make head ext-1 to run target": {
+		mockSetup: mock.Chain(
+			Exec("stderr", "stderr", dirExec,
+				make.CmdGitClone(goMakeGit, goMakeDirNew), nil, "", ""),
+			Exec("builder", "stderr", goMakeDirNew,
+				make.CmdGitHashHead(), nil, revisionHead, ""),
+			Exec("builder", "stderr", goMakeDirNew,
+				make.CmdGitHashNow(), nil, revisionHeadExt, ""),
+			Exec("stdout", "stderr", dirExec,
+				make.CmdMakeTargets(make.Makefile, argsTarget...),
+				nil, "", ""),
+		),
+		info:      infoHead,
+		args:      argsTarget,
+		goMakeDir: goMakeDirNew,
+	},
+
+	"clone go-make head ext-2 to run target": {
+		mockSetup: mock.Chain(
+			Exec("stderr", "stderr", dirExec,
+				make.CmdGitClone(goMakeGit, goMakeDirNew), nil, "", ""),
+			Exec("builder", "stderr", goMakeDirNew,
+				make.CmdGitHashHead(), nil, revisionHeadExt, ""),
+			Exec("builder", "stderr", goMakeDirNew,
+				make.CmdGitHashNow(), nil, revisionHead, ""),
+			Exec("stdout", "stderr", dirExec,
+				make.CmdMakeTargets(make.Makefile, argsTarget...),
+				nil, "", ""),
+		),
+		info:      infoHead,
+		args:      argsTarget,
+		goMakeDir: goMakeDirNew,
+	},
 
 	"clone go-make hash to run target": {
 		mockSetup: mock.Chain(
@@ -808,6 +843,8 @@ var (
 	// build path dependent parts.
 	regexMatchSourceDir = regexp.MustCompile( //nolint:gosimple // Just wrong!
 		"(?m)(['\\[])([^'\\]]*/)(go-make/[^'\\]]*)(['\\]])")
+	regexMatchMakeLog = regexp.MustCompile( //nolint:gosimple // Just wrong!
+		"(?m)make\\[[0-9]*\\]: (Entering|Leaving) directory [^\\n]*\\n")
 
 	replacerFixture = strings.NewReplacer(
 		"{{GOVERSION}}", runtime.Version()[2:],
@@ -816,6 +853,7 @@ var (
 )
 
 func FilterMakeOutput(str string) string {
+	str = regexMatchMakeLog.ReplaceAllString(str, "")
 	str = regexMatchTestDir.ReplaceAllString(str, "")
 	str = regexMatchSourceDir.ReplaceAllString(str, "$1$3$4")
 	return str