diff --git a/internal/lsp/source/rename.go b/internal/lsp/source/rename.go
index 56e6dfab8d..5ac65fbd6e 100644
--- a/internal/lsp/source/rename.go
+++ b/internal/lsp/source/rename.go
@@ -43,6 +43,11 @@ func (i *IdentifierInfo) Rename(ctx context.Context, newName string) (map[span.U
 	if i.Name == newName {
 		return nil, errors.Errorf("old and new names are the same: %s", newName)
 	}
+	// If the object declaration is nil, assume it is an import spec and return an error.
+	// TODO(suzmue): support renaming of identifiers in an import spec.
+	if i.decl.obj == nil {
+		return nil, errors.Errorf("renaming import %q not supported", i.Name)
+	}
 	if !isValidIdentifier(i.Name) {
 		return nil, errors.Errorf("invalid identifier to rename: %q", i.Name)
 	}
diff --git a/internal/lsp/testdata/rename/a/random.go.golden b/internal/lsp/testdata/rename/a/random.go.golden
index 53bbc29d3e..518757f14f 100644
--- a/internal/lsp/testdata/rename/a/random.go.golden
+++ b/internal/lsp/testdata/rename/a/random.go.golden
@@ -4,7 +4,7 @@ package a
 
 import (
 	lg "log"
-	"fmt"
+	"fmt" //@rename("fmt", "fmty")
 	f2 "fmt"
 )
 
@@ -49,7 +49,7 @@ package a
 
 import (
 	lg "log"
-	"fmt"
+	"fmt" //@rename("fmt", "fmty")
 	fmt2 "fmt"
 )
 
@@ -88,13 +88,15 @@ func sw() {
 	}
 }
 
+-- fmty-rename --
+renaming import "fmt" not supported
 -- format-rename --
 random.go:
 package a
 
 import (
 	lg "log"
-	format "fmt"
+	format "fmt" //@rename("fmt", "fmty")
 	f2 "fmt"
 )
 
@@ -139,7 +141,7 @@ package a
 
 import (
 	"log"
-	"fmt"
+	"fmt" //@rename("fmt", "fmty")
 	f2 "fmt"
 )
 
@@ -184,7 +186,7 @@ package a
 
 import (
 	lg "log"
-	"fmt"
+	"fmt" //@rename("fmt", "fmty")
 	f2 "fmt"
 )
 
@@ -229,7 +231,7 @@ package a
 
 import (
 	lg "log"
-	"fmt"
+	"fmt" //@rename("fmt", "fmty")
 	f2 "fmt"
 )
 
@@ -274,7 +276,7 @@ package a
 
 import (
 	lg "log"
-	"fmt"
+	"fmt" //@rename("fmt", "fmty")
 	f2 "fmt"
 )
 
@@ -319,7 +321,7 @@ package a
 
 import (
 	lg "log"
-	"fmt"
+	"fmt" //@rename("fmt", "fmty")
 	f2 "fmt"
 )
 
@@ -364,7 +366,7 @@ package a
 
 import (
 	lg "log"
-	"fmt"
+	"fmt" //@rename("fmt", "fmty")
 	f2 "fmt"
 )
 
@@ -409,7 +411,7 @@ package a
 
 import (
 	lg "log"
-	"fmt"
+	"fmt" //@rename("fmt", "fmty")
 	f2 "fmt"
 )
 
@@ -454,7 +456,7 @@ package a
 
 import (
 	lg "log"
-	"fmt"
+	"fmt" //@rename("fmt", "fmty")
 	f2 "fmt"
 )
 
diff --git a/internal/lsp/testdata/rename/a/random.go.in b/internal/lsp/testdata/rename/a/random.go.in
index c2cf0202c0..12026d0503 100644
--- a/internal/lsp/testdata/rename/a/random.go.in
+++ b/internal/lsp/testdata/rename/a/random.go.in
@@ -2,7 +2,7 @@ package a
 
 import (
 	lg "log"
-	"fmt"
+	"fmt" //@rename("fmt", "fmty")
 	f2 "fmt"
 )
 
diff --git a/internal/lsp/tests/tests.go b/internal/lsp/tests/tests.go
index e83c695feb..01b7d1169f 100644
--- a/internal/lsp/tests/tests.go
+++ b/internal/lsp/tests/tests.go
@@ -38,7 +38,7 @@ const (
 	ExpectedTypeDefinitionsCount   = 2
 	ExpectedHighlightsCount        = 2
 	ExpectedReferencesCount        = 5
-	ExpectedRenamesCount           = 17
+	ExpectedRenamesCount           = 18
 	ExpectedSymbolsCount           = 1
 	ExpectedSignaturesCount        = 21
 	ExpectedLinksCount             = 4