diff --git a/gtk/theme/Adwaita/_common.scss b/gtk/theme/Adwaita/_common.scss
index c4dca89f43..e522a5ca07 100644
--- a/gtk/theme/Adwaita/_common.scss
+++ b/gtk/theme/Adwaita/_common.scss
@@ -1831,6 +1831,10 @@ notebook {
       }
     }
 
+    arrow:disabled {
+      color: $insensitive_fg_color;
+    }
+
     tab {
       font-weight: bold;
       min-height: 36px;
diff --git a/gtk/theme/Adwaita/gtk-contained-dark.css b/gtk/theme/Adwaita/gtk-contained-dark.css
index 8357667f69..1f6b4a2d3b 100644
--- a/gtk/theme/Adwaita/gtk-contained-dark.css
+++ b/gtk/theme/Adwaita/gtk-contained-dark.css
@@ -2193,6 +2193,8 @@ notebook > header {
         box-shadow: none; }
       notebook > header.right > tabs > tab:active {
         box-shadow: inset 3px 0 #215d9c; }
+  notebook > header arrow:disabled {
+    color: #949796; }
   notebook > header tab {
     font-weight: bold;
     min-height: 36px;
diff --git a/gtk/theme/Adwaita/gtk-contained.css b/gtk/theme/Adwaita/gtk-contained.css
index 555d1d2094..67eb29239e 100644
--- a/gtk/theme/Adwaita/gtk-contained.css
+++ b/gtk/theme/Adwaita/gtk-contained.css
@@ -2203,6 +2203,8 @@ notebook > header {
         box-shadow: none; }
       notebook > header.right > tabs > tab:active {
         box-shadow: inset 3px 0 #4a90d9; }
+  notebook > header arrow:disabled {
+    color: #8b8e8f; }
   notebook > header tab {
     font-weight: bold;
     min-height: 36px;