diff --git a/src/main/kotlin/io/github/reactivecircus/kstreamlined/backend/datafetcher/mapper/TalkingKotlinEntryMapper.kt b/src/main/kotlin/io/github/reactivecircus/kstreamlined/backend/datafetcher/mapper/TalkingKotlinEntryMapper.kt
index 8d75e15..cec8838 100644
--- a/src/main/kotlin/io/github/reactivecircus/kstreamlined/backend/datafetcher/mapper/TalkingKotlinEntryMapper.kt
+++ b/src/main/kotlin/io/github/reactivecircus/kstreamlined/backend/datafetcher/mapper/TalkingKotlinEntryMapper.kt
@@ -16,11 +16,16 @@ fun TalkingKotlinItem.toTalkingKotlinEntry(): TalkingKotlin {
         contentUrl = link,
         thumbnailUrl = image.href,
         audioUrl = enclosure.url,
-        summary = summary,
+        summary = summary.sanitize(),
         duration = duration.toFormattedDuration(),
     )
 }
 
+private fun String.sanitize(): String {
+    return replace(Regex("[\n\r]+"), " ")
+        .replace(Regex("\\s+"), " ")
+}
+
 private fun String.toFormattedDuration(): String {
     val parts = split(":").map { it.toInt() }
     val duration = Duration.ofHours(parts[0].toLong())
diff --git a/src/test/kotlin/io/github/reactivecircus/kstreamlined/backend/datafetcher/mapper/TalkingKotlinEntryMapperTest.kt b/src/test/kotlin/io/github/reactivecircus/kstreamlined/backend/datafetcher/mapper/TalkingKotlinEntryMapperTest.kt
index 47fe3ac..b09a67e 100644
--- a/src/test/kotlin/io/github/reactivecircus/kstreamlined/backend/datafetcher/mapper/TalkingKotlinEntryMapperTest.kt
+++ b/src/test/kotlin/io/github/reactivecircus/kstreamlined/backend/datafetcher/mapper/TalkingKotlinEntryMapperTest.kt
@@ -17,7 +17,7 @@ class TalkingKotlinEntryMapperTest {
             contentUrl = "url",
             audioUrl = "audio-url",
             thumbnailUrl = "image-url",
-            summary = "summary",
+            summary = "summary line 1 line 2 line 3",
             duration = "43min.",
         )
         val actual = TalkingKotlinItem(
@@ -26,7 +26,7 @@ class TalkingKotlinEntryMapperTest {
             pubDate = "Tue, 22 Nov 2022 16:30:09 +0000",
             link = "url",
             duration = "00:43:14",
-            summary = "summary",
+            summary = "summary line 1\n\n line 2 \r\n   line 3",
             enclosure = TalkingKotlinItem.Enclosure(url = "audio-url"),
             image = TalkingKotlinItem.Image(href = "image-url"),
         ).toTalkingKotlinEntry()