diff --git a/ignore/src/gitignore.rs b/ignore/src/gitignore.rs
index abcb3685..b6874d98 100644
--- a/ignore/src/gitignore.rs
+++ b/ignore/src/gitignore.rs
@@ -500,6 +500,8 @@ impl GitignoreBuilder {
 
     /// Toggle whether the globs should be matched case insensitively or not.
     ///
+    /// When this option is changed, only globs added after the change will be affected.
+    ///
     /// This is disabled by default.
     pub fn case_insensitive(
         &mut self, yes: bool
diff --git a/ignore/src/overrides.rs b/ignore/src/overrides.rs
index 955dc5ad..c63532af 100644
--- a/ignore/src/overrides.rs
+++ b/ignore/src/overrides.rs
@@ -140,6 +140,8 @@ impl OverrideBuilder {
 
     /// Toggle whether the globs should be matched case insensitively or not.
     /// 
+    /// When this option is changed, only globs added after the change will be affected.
+    ///
     /// This is disabled by default.
     pub fn case_insensitive(
         &mut self, yes: bool