diff --git a/c_glib/arrow-glib/basic-array.cpp b/c_glib/arrow-glib/basic-array.cpp
index 9e9753c4e007d..0704687fed56a 100644
--- a/c_glib/arrow-glib/basic-array.cpp
+++ b/c_glib/arrow-glib/basic-array.cpp
@@ -1046,7 +1046,7 @@ gboolean
 garrow_array_validate_full(GArrowArray *array, GError **error)
 {
   const auto arrow_array = garrow_array_get_raw(array);
-  return garrow::check(error, arrow_array->ValidateFull(), "[array][validate_full]");
+  return garrow::check(error, arrow_array->ValidateFull(), "[array][validate-full]");
 }
 
 G_DEFINE_TYPE(GArrowNullArray, garrow_null_array, GARROW_TYPE_ARRAY)
diff --git a/c_glib/test/test-array.rb b/c_glib/test/test-array.rb
index cd62d917cf664..aa129a4749aba 100644
--- a/c_glib/test/test-array.rb
+++ b/c_glib/test/test-array.rb
@@ -212,7 +212,7 @@ def test_valid
     end
 
     def test_invalid
-      message = "[array][validate_full]: Invalid: Invalid UTF8 sequence at string index 0"
+      message = "[array][validate-full]: Invalid: Invalid UTF8 sequence at string index 0"
 
       # U+3042 HIRAGANA LETTER A, U+3044 HIRAGANA LETTER I
       data = "\u3042\u3044".b[0..-2]