diff --git a/internal/lsp/source/completion/completion.go b/internal/lsp/source/completion/completion.go
index aa1600fb8d..07ff03108c 100644
--- a/internal/lsp/source/completion/completion.go
+++ b/internal/lsp/source/completion/completion.go
@@ -386,6 +386,9 @@ type candidate struct {
 	// For example, dereference=2 turns "foo" into "**foo" when formatting.
 	dereference int
 
+	// takeSlice is true if obj is an array that should be converted to a slice.
+	takeSlice bool
+
 	// variadic is true if this candidate fills a variadic param and
 	// needs "..." appended.
 	variadic bool
@@ -2464,6 +2467,13 @@ func (c *candidate) anyCandType(f func(t types.Type, addressable bool) bool) boo
 		return true
 	}
 
+	if array, ok := objType.Underlying().(*types.Array); ok {
+		if f(types.NewSlice(array.Elem()), false) {
+			c.takeSlice = true
+			return true
+		}
+	}
+
 	return false
 }
 
diff --git a/internal/lsp/source/completion/format.go b/internal/lsp/source/completion/format.go
index 6d8299c7ab..f34a84e554 100644
--- a/internal/lsp/source/completion/format.go
+++ b/internal/lsp/source/completion/format.go
@@ -150,6 +150,11 @@ func (c *completer) item(ctx context.Context, cand candidate) (CompletionItem, e
 		prefix = typeName + "(" + prefix
 		suffix = ")"
 	}
+
+	if cand.takeSlice {
+		suffix += "[:]"
+	}
+
 	// Add variadic "..." only if snippets if enabled or cand is not a function
 	if cand.variadic && (c.opts.snippets || !cand.expandFuncCall) {
 		suffix += "..."
diff --git a/internal/lsp/testdata/arraytype/array_type.go.in b/internal/lsp/testdata/arraytype/array_type.go.in
index a53ee74a66..7e9a96f7b0 100644
--- a/internal/lsp/testdata/arraytype/array_type.go.in
+++ b/internal/lsp/testdata/arraytype/array_type.go.in
@@ -41,3 +41,8 @@ func _() {
 	var ds [][]myInt
 	ds = [][]m //@complete(" //", atMyInt)
 }
+
+func _() {
+	var b [0]byte //@item(atByte, "b", "[0]byte", "var")
+	var _ []byte = b //@snippet(" //", atByte, "b[:]", "b[:]")
+}
diff --git a/internal/lsp/testdata/summary.txt.golden b/internal/lsp/testdata/summary.txt.golden
index f2fbc95b92..8c4c72a4c7 100644
--- a/internal/lsp/testdata/summary.txt.golden
+++ b/internal/lsp/testdata/summary.txt.golden
@@ -2,7 +2,7 @@
 CallHierarchyCount = 2
 CodeLensCount = 5
 CompletionsCount = 262
-CompletionSnippetCount = 94
+CompletionSnippetCount = 95
 UnimportedCompletionsCount = 5
 DeepCompletionsCount = 5
 FuzzyCompletionsCount = 8