diff --git a/internal/fingerprint/glob.go b/internal/fingerprint/glob.go
index bf12afdd12..525a12e05f 100644
--- a/internal/fingerprint/glob.go
+++ b/internal/fingerprint/glob.go
@@ -3,6 +3,7 @@ package fingerprint
 import (
 	"os"
 	"sort"
+	"strings"
 
 	"github.com/go-task/task/v3/internal/execext"
 	"github.com/go-task/task/v3/internal/filepathext"
@@ -25,6 +26,7 @@ func Globs(dir string, globs []*ast.Glob) ([]string, error) {
 
 func glob(dir string, g string) ([]string, error) {
 	g = filepathext.SmartJoin(dir, g)
+	g = strings.ReplaceAll(g, " ", `\ `)
 
 	fs, err := execext.ExpandFields(g)
 	if err != nil {
diff --git a/internal/fingerprint/sources_timestamp.go b/internal/fingerprint/sources_timestamp.go
index b1a6f299d5..2127aba00c 100644
--- a/internal/fingerprint/sources_timestamp.go
+++ b/internal/fingerprint/sources_timestamp.go
@@ -32,8 +32,21 @@ func (checker *TimestampChecker) IsUpToDate(t *ast.Task) (bool, error) {
 	if err != nil {
 		return false, nil
 	}
-	generates, err := Globs(t.Dir, t.Generates)
-	if err != nil {
+	generates := []string{}
+	for _, g := range t.Generates {
+		if g.Negate {
+			continue // 'excludes' not considered for generates.
+		}
+		files, err := glob(t.Dir, g.Glob)
+		if os.IsNotExist(err) || len(files) == 0 {
+			return false, nil
+		}
+		if err != nil {
+			return false, err
+		}
+		generates = append(generates, files...)
+	}
+	if len(generates) == 0 {
 		return false, nil
 	}