diff --git a/yara-x-parser/src/warnings.rs b/yara-x-parser/src/warnings.rs
index 9438ced0a..862db3940 100644
--- a/yara-x-parser/src/warnings.rs
+++ b/yara-x-parser/src/warnings.rs
@@ -65,7 +65,7 @@ pub enum Warning {
     },
 
     #[warning("redundant case-insensitive modifier")]
-    #[label("the `i` postfix indicates that the pattern is case-insensitive", i_span)]
+    #[label("the `i` suffix indicates that the pattern is case-insensitive", i_span)]
     #[label("the `nocase` modifier does the same", nocase_span)]
     RedundantCaseModifier {
         detailed_report: String,
diff --git a/yara-x/src/compiler/tests/warnings.rs b/yara-x/src/compiler/tests/warnings.rs
index a6f7e2763..6f62ea377 100644
--- a/yara-x/src/compiler/tests/warnings.rs
+++ b/yara-x/src/compiler/tests/warnings.rs
@@ -148,7 +148,7 @@ rule test {
    │
  4 │     $a = /foo/i nocase
    │               ┬ ───┬──  
-   │               ╰───────── the `i` postfix indicates that the pattern is case-insensitive
+   │               ╰───────── the `i` suffix indicates that the pattern is case-insensitive
    │                    │    
    │                    ╰──── the `nocase` modifier does the same
 ───╯