diff --git a/themes/compact.css b/themes/compact.css
index a9cd43304..9e936befa 100644
--- a/themes/compact.css
+++ b/themes/compact.css
@@ -1647,6 +1647,10 @@ body.ttrss_utility.installer,
 body.ttrss_utility.feed_debugger {
   margin: 2em;
 }
+body.ttrss_utility.installer pre,
+body.ttrss_utility.feed_debugger pre {
+  white-space: pre-wrap;
+}
 body.ttrss_utility.share_popup {
   margin: 0;
   padding: 0;
diff --git a/themes/compact_night.css b/themes/compact_night.css
index 69a2d5034..be0c248f3 100644
--- a/themes/compact_night.css
+++ b/themes/compact_night.css
@@ -1801,6 +1801,10 @@ body.ttrss_utility.installer,
 body.ttrss_utility.feed_debugger {
   margin: 2em;
 }
+body.ttrss_utility.installer pre,
+body.ttrss_utility.feed_debugger pre {
+  white-space: pre-wrap;
+}
 body.ttrss_utility.share_popup {
   margin: 0;
   padding: 0;
diff --git a/themes/light.css b/themes/light.css
index bd8e9219e..8467c346f 100644
--- a/themes/light.css
+++ b/themes/light.css
@@ -1647,6 +1647,10 @@ body.ttrss_utility.installer,
 body.ttrss_utility.feed_debugger {
   margin: 2em;
 }
+body.ttrss_utility.installer pre,
+body.ttrss_utility.feed_debugger pre {
+  white-space: pre-wrap;
+}
 body.ttrss_utility.share_popup {
   margin: 0;
   padding: 0;
diff --git a/themes/light/utility.less b/themes/light/utility.less
index 087c4ced3..1c30c77ab 100644
--- a/themes/light/utility.less
+++ b/themes/light/utility.less
@@ -101,6 +101,10 @@ body.ttrss_utility.ttrss_login {
 body.ttrss_utility.installer,
 body.ttrss_utility.feed_debugger {
 	margin : 2em;
+
+	pre {
+		white-space : pre-wrap;
+	}
 }
 
 body.ttrss_utility.share_popup {
diff --git a/themes/night.css b/themes/night.css
index e47120d8f..239f3af9c 100644
--- a/themes/night.css
+++ b/themes/night.css
@@ -1802,6 +1802,10 @@ body.ttrss_utility.installer,
 body.ttrss_utility.feed_debugger {
   margin: 2em;
 }
+body.ttrss_utility.installer pre,
+body.ttrss_utility.feed_debugger pre {
+  white-space: pre-wrap;
+}
 body.ttrss_utility.share_popup {
   margin: 0;
   padding: 0;
diff --git a/themes/night_blue.css b/themes/night_blue.css
index de8acffdf..5b11648bf 100644
--- a/themes/night_blue.css
+++ b/themes/night_blue.css
@@ -1802,6 +1802,10 @@ body.ttrss_utility.installer,
 body.ttrss_utility.feed_debugger {
   margin: 2em;
 }
+body.ttrss_utility.installer pre,
+body.ttrss_utility.feed_debugger pre {
+  white-space: pre-wrap;
+}
 body.ttrss_utility.share_popup {
   margin: 0;
   padding: 0;