diff --git a/internal/lsp/source/completion.go b/internal/lsp/source/completion.go
index 3f70f85..1a8fc68 100644
--- a/internal/lsp/source/completion.go
+++ b/internal/lsp/source/completion.go
@@ -61,16 +61,14 @@
 		return nil, "", fmt.Errorf("cannot find node enclosing position")
 	}
 
-	// Skip completion inside comment blocks or string literals.
-	switch lit := path[0].(type) {
-	case *ast.File, *ast.BlockStmt:
-		if inComment(pos, file.Comments) {
-			return items, prefix, nil
-		}
-	case *ast.BasicLit:
-		if lit.Kind == token.STRING {
-			return items, prefix, nil
-		}
+	// Skip completion inside comments.
+	if inComment(pos, file.Comments) {
+		return items, prefix, nil
+	}
+
+	// Skip completion inside any kind of literal.
+	if _, ok := path[0].(*ast.BasicLit); ok {
+		return items, prefix, nil
 	}
 
 	// Save certain facts about the query position, including the expected type
@@ -283,10 +281,8 @@
 // inComment checks if given token position is inside ast.Comment node.
 func inComment(pos token.Pos, commentGroups []*ast.CommentGroup) bool {
 	for _, g := range commentGroups {
-		for _, c := range g.List {
-			if c.Pos() <= pos && pos <= c.End() {
-				return true
-			}
+		if g.Pos() <= pos && pos <= g.End() {
+			return true
 		}
 	}
 	return false
diff --git a/internal/lsp/testdata/bar/bar.go.in b/internal/lsp/testdata/bar/bar.go.in
index 1677e73..54f5c64 100644
--- a/internal/lsp/testdata/bar/bar.go.in
+++ b/internal/lsp/testdata/bar/bar.go.in
@@ -38,9 +38,9 @@
 		Value: Valen //@complete("le", Valentine)
 	}
 	_ = foo.StructFoo{
-		Value:       //@complete(re"$", Valentine, foo, Bar, helper)
+		Value:       //@complete(" //", Valentine, foo, Bar, helper)
 	}
 	_ = foo.StructFoo{
 		Value:       //@complete(" ", Valentine, foo, Bar, helper)
 	}
-}
\ No newline at end of file
+}
diff --git a/internal/lsp/testdata/basiclit/basiclit.go b/internal/lsp/testdata/basiclit/basiclit.go
new file mode 100644
index 0000000..ab895dc
--- /dev/null
+++ b/internal/lsp/testdata/basiclit/basiclit.go
@@ -0,0 +1,13 @@
+package basiclit
+
+func _() {
+	var a int // something for lexical completions
+
+	_ = "hello." //@complete(".")
+
+	_ = 1 //@complete(" //")
+
+	_ = 1. //@complete(".")
+
+	_ = 'a' //@complete("' ")
+}
diff --git a/internal/lsp/testdata/baz/baz.go.in b/internal/lsp/testdata/baz/baz.go.in
index 90d952b..534854c 100644
--- a/internal/lsp/testdata/baz/baz.go.in
+++ b/internal/lsp/testdata/baz/baz.go.in
@@ -18,14 +18,14 @@
 
 func _() {
 	bob := f.StructFoo{Value: 5}
-	if x := bob.           //@complete(re"$", Value)
+	if x := bob.           //@complete(" //", Value)
 	switch true == false {
 		case true:
-			if x := bob.   //@complete(re"$", Value)
+			if x := bob.   //@complete(" //", Value)
 		case false:
 	}
 	if x := bob.Va         //@complete("a", Value)
 	switch true == true {
 		default:
 	}
-}
\ No newline at end of file
+}
diff --git a/internal/lsp/testdata/comments/comments.go b/internal/lsp/testdata/comments/comments.go
new file mode 100644
index 0000000..e261cfd
--- /dev/null
+++ b/internal/lsp/testdata/comments/comments.go
@@ -0,0 +1,27 @@
+package comments
+
+var p bool
+
+//@complete(re"$")
+
+func _() {
+	var a int
+
+	switch a {
+	case 1:
+		//@complete(re"$")
+		_ = a
+	}
+
+	var b chan int
+	select {
+	case <-b:
+		//@complete(re"$")
+		_ = b
+	}
+
+	var (
+		//@complete(re"$")
+		_ = a
+	)
+}
diff --git a/internal/lsp/testdata/stringlit/stringlit.go.in b/internal/lsp/testdata/stringlit/stringlit.go.in
deleted file mode 100644
index 2558eb5..0000000
--- a/internal/lsp/testdata/stringlit/stringlit.go.in
+++ /dev/null
@@ -1,5 +0,0 @@
-package stringlit
-
-func _() {
-	_ := "hello." //@complete(".")
-}
diff --git a/internal/lsp/tests/tests.go b/internal/lsp/tests/tests.go
index bd36b82..046c9ee 100644
--- a/internal/lsp/tests/tests.go
+++ b/internal/lsp/tests/tests.go
@@ -27,7 +27,7 @@
 // We hardcode the expected number of test cases to ensure that all tests
 // are being executed. If a test is added, this number must be changed.
 const (
-	ExpectedCompletionsCount     = 75
+	ExpectedCompletionsCount     = 82
 	ExpectedDiagnosticsCount     = 16
 	ExpectedFormatCount          = 4
 	ExpectedDefinitionsCount     = 21