diff --git a/tools/aapt2/Resource.cpp b/tools/aapt2/Resource.cpp
index 0bb330e26e6fb..df8c3b9956d03 100644
--- a/tools/aapt2/Resource.cpp
+++ b/tools/aapt2/Resource.cpp
@@ -139,10 +139,10 @@ ResourceNamedTypeRef ResourceNamedTypeWithDefaultName(ResourceType t) {
 }
 
 std::optional<ResourceNamedTypeRef> ParseResourceNamedType(const android::StringPiece& s) {
-  auto colon = std::find(s.begin(), s.end(), ':');
+  auto dot = std::find(s.begin(), s.end(), '.');
   const ResourceType* parsedType;
-  if (colon != s.end() && colon != std::prev(s.end())) {
-    parsedType = ParseResourceType(s.substr(s.begin(), colon));
+  if (dot != s.end() && dot != std::prev(s.end())) {
+    parsedType = ParseResourceType(s.substr(s.begin(), dot));
   } else {
     parsedType = ParseResourceType(s);
   }
diff --git a/tools/aapt2/Resource_test.cpp b/tools/aapt2/Resource_test.cpp
index 2c55d1d548db9..01d3c84e05bab 100644
--- a/tools/aapt2/Resource_test.cpp
+++ b/tools/aapt2/Resource_test.cpp
@@ -135,13 +135,13 @@ TEST(ResourceTypeTest, ParseResourceNamedType) {
   type = ParseResourceNamedType("layout");
   EXPECT_THAT(type, Optional(Eq(ResourceNamedType("layout", ResourceType::kLayout))));
 
-  type = ParseResourceNamedType("layout:2");
-  EXPECT_THAT(type, Optional(Eq(ResourceNamedType("layout:2", ResourceType::kLayout))));
+  type = ParseResourceNamedType("layout.2");
+  EXPECT_THAT(type, Optional(Eq(ResourceNamedType("layout.2", ResourceType::kLayout))));
 
-  type = ParseResourceNamedType("layout:another");
-  EXPECT_THAT(type, Optional(Eq(ResourceNamedType("layout:another", ResourceType::kLayout))));
+  type = ParseResourceNamedType("layout.another");
+  EXPECT_THAT(type, Optional(Eq(ResourceNamedType("layout.another", ResourceType::kLayout))));
 
-  type = ParseResourceNamedType("layout:");
+  type = ParseResourceNamedType("layout.");
   EXPECT_THAT(type, Eq(std::nullopt));
 
   type = ParseResourceNamedType("layout2");