diff --git a/tests/modules/programs/gemini-cli/context.nix b/tests/modules/programs/gemini-cli/context.nix
index f4b547ac5..6fbac0eac 100644
--- a/tests/modules/programs/gemini-cli/context.nix
+++ b/tests/modules/programs/gemini-cli/context.nix
@@ -41,5 +41,9 @@
     assertFileExists home-files/.gemini/CONTEXT.md
     assertFileContent home-files/.gemini/CONTEXT.md \
       ${./context-additional.md}
+
+    assertFileExists home-path/etc/profile.d/hm-session-vars.sh
+    assertFileNotRegex home-path/etc/profile.d/hm-session-vars.sh \
+      "GEMINI_MODEL"
   '';
 }
diff --git a/tests/modules/programs/gemini-cli/settings.nix b/tests/modules/programs/gemini-cli/settings.nix
index f78a14f65..80a4344a3 100644
--- a/tests/modules/programs/gemini-cli/settings.nix
+++ b/tests/modules/programs/gemini-cli/settings.nix
@@ -1,6 +1,7 @@
 {
   programs.gemini-cli = {
     enable = true;
+    defaultModel = "gemini-2.5-flash";
     settings = {
       theme = "Default";
       vimMode = true;
@@ -28,5 +29,9 @@
       ${./changelog.toml}
     assertFileContent home-files/.gemini/commands/git/fix.toml \
       ${./fix.toml}
+
+    assertFileExists home-path/etc/profile.d/hm-session-vars.sh
+    assertFileContains home-path/etc/profile.d/hm-session-vars.sh \
+      'export GEMINI_MODEL="gemini-2.5-flash"'
   '';
 }