diff --git a/ktor-server/ktor-server-core/common/src/io/ktor/server/routing/RouteSelector.kt b/ktor-server/ktor-server-core/common/src/io/ktor/server/routing/RouteSelector.kt
index f2f8ef02e4..c46d53afa4 100644
--- a/ktor-server/ktor-server-core/common/src/io/ktor/server/routing/RouteSelector.kt
+++ b/ktor-server/ktor-server-core/common/src/io/ktor/server/routing/RouteSelector.kt
@@ -599,7 +599,9 @@ public data class HttpMultiAcceptRouteSelector(
                 return RouteSelectorEvaluation.Missing
             }
 
-            val header = parsedHeaders.firstOrNull { header -> contentTypes.any { it.match(header.value) } }
+            val header = parsedHeaders.firstOrNull { header ->
+                contentTypes.any { ContentType.parse(header.value).match(it) }
+            }
             if (header != null) {
                 return RouteSelectorEvaluation.Success(header.quality)
             }
diff --git a/ktor-server/ktor-server-tests/common/test/io/ktor/tests/server/routing/RoutingProcessingTest.kt b/ktor-server/ktor-server-tests/common/test/io/ktor/tests/server/routing/RoutingProcessingTest.kt
index d27b2080e7..46d3168a78 100644
--- a/ktor-server/ktor-server-tests/common/test/io/ktor/tests/server/routing/RoutingProcessingTest.kt
+++ b/ktor-server/ktor-server-tests/common/test/io/ktor/tests/server/routing/RoutingProcessingTest.kt
@@ -191,6 +191,28 @@ class RoutingProcessingTest {
         }
     }
 
+    @Test
+    fun testRoutingAcceptContentSubtypeWildcard() = testApplication {
+
+        routing {
+            route("getImage") {
+                accept(ContentType.Image.Any) {
+                    get { call.respondText { "Image" } }
+                }
+            }
+        }
+
+        on("making request to /getImage with Accept image/png") {
+            client.get("/getImage") {
+                header(HttpHeaders.Accept, "image/png")
+            }
+            .let {
+                assertEquals(HttpStatusCode.OK, it.status)
+                assertEquals("Image", it.bodyAsText())
+            }
+        }
+    }
+
     @Test
     fun testMostSpecificSelected() = testApplication {
         var path = ""