diff --git a/pkgs/development/libraries/gtksourceview/5.x.nix b/pkgs/development/libraries/gtksourceview/5.x.nix
index 97cb693e3547..d3ac8246d95e 100644
--- a/pkgs/development/libraries/gtksourceview/5.x.nix
+++ b/pkgs/development/libraries/gtksourceview/5.x.nix
@@ -86,10 +86,12 @@ stdenv.mkDerivation rec {
   checkPhase = ''
     runHook preCheck
 
-    XDG_DATA_DIRS="$XDG_DATA_DIRS:${shared-mime-info}/share" \
-    xvfb-run -s '-screen 0 800x600x24' dbus-run-session \
-      --config-file=${dbus}/share/dbus-1/session.conf \
-      meson test --no-rebuild --print-errorlogs
+    env \
+      XDG_DATA_DIRS="$XDG_DATA_DIRS:${shared-mime-info}/share" \
+      GTK_A11Y=none \
+      xvfb-run -s '-screen 0 800x600x24' dbus-run-session \
+        --config-file=${dbus}/share/dbus-1/session.conf \
+        meson test --no-rebuild --print-errorlogs
 
     runHook postCheck
   '';
diff --git a/pkgs/development/libraries/libshumate/default.nix b/pkgs/development/libraries/libshumate/default.nix
index 2d7e6c5fb7a2..4164ef4a46f8 100644
--- a/pkgs/development/libraries/libshumate/default.nix
+++ b/pkgs/development/libraries/libshumate/default.nix
@@ -61,7 +61,10 @@ stdenv.mkDerivation rec {
   checkPhase = ''
     runHook preCheck
 
-    HOME=$TMPDIR xvfb-run meson test --print-errorlogs
+    env \
+      HOME="$TMPDIR" \
+      GTK_A11Y=none \
+      xvfb-run meson test --print-errorlogs
 
     runHook postCheck
   '';