diff --git a/.changeset/sixty-clowns-run.md b/.changeset/sixty-clowns-run.md
new file mode 100644
index 0000000000..595049df8f
--- /dev/null
+++ b/.changeset/sixty-clowns-run.md
@@ -0,0 +1,5 @@
+---
+'@backstage/core-components': patch
+---
+
+Line numbers in LogViewer will not be selectable in UI anymore
diff --git a/packages/core-components/src/components/LogViewer/styles.ts b/packages/core-components/src/components/LogViewer/styles.ts
index 76e045ca32..238361f9a9 100644
--- a/packages/core-components/src/components/LogViewer/styles.ts
+++ b/packages/core-components/src/components/LogViewer/styles.ts
@@ -97,6 +97,7 @@ export const useStyles = makeStyles(
       marginRight: theme.spacing(1),
       cursor: 'pointer',
       flexShrink: 0,
+      userSelect: 'none',
     },
     textHighlight: {
       background: alpha(theme.palette.info.main, 0.15),