diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/details/ui/DetailsActivity.kt b/app/src/main/kotlin/org/koitharu/kotatsu/details/ui/DetailsActivity.kt
index 4c774bd0a..1925d1ca8 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/details/ui/DetailsActivity.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/details/ui/DetailsActivity.kt
@@ -484,8 +484,10 @@ class DetailsActivity :
 		textViewProgress.textAndVisible = if (info.percent <= 0f) {
 			null
 		} else {
-			getString(R.string.percent_string_pattern, (info.percent * 100f).toInt().toString())
+			val displayPercent = if (info.percent >= 0.999999f) 100 else (info.percent * 100f).toInt()
+			getString(R.string.percent_string_pattern, displayPercent.toString())
 		}
+
 		progress.setProgressCompat(
 			(progress.max * info.percent.coerceIn(0f, 1f)).roundToInt(),
 			true,
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/history/data/HistoryRepository.kt b/app/src/main/kotlin/org/koitharu/kotatsu/history/data/HistoryRepository.kt
index 01fcf35b5..060211ddc 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/history/data/HistoryRepository.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/history/data/HistoryRepository.kt
@@ -154,10 +154,11 @@ class HistoryRepository @Inject constructor(
 
 	suspend fun getProgress(mangaId: Long, mode: ProgressIndicatorMode): ReadingProgress? {
 		val entity = db.getHistoryDao().find(mangaId) ?: return null
+		val fixedPercent = if (entity.percent >= 0.999999f) 1f else entity.percent
 		return ReadingProgress(
-			percent = entity.percent,
+			percent = fixedPercent,
 			totalChapters = entity.chaptersCount,
-			mode = mode,
+			mode = mode
 		).takeIf { it.isValid() }
 	}