diff --git a/be/src/vec/functions/function_bitmap.cpp b/be/src/vec/functions/function_bitmap.cpp
index fb0e0471caac06..7f8ca009f991cb 100644
--- a/be/src/vec/functions/function_bitmap.cpp
+++ b/be/src/vec/functions/function_bitmap.cpp
@@ -289,8 +289,8 @@ struct BitmapFromBase64 {
             } else {
                 BitmapValue bitmap_val;
                 if (!bitmap_val.deserialize(decode_buff.data())) {
-                    return Status::RuntimeError(
-                            fmt::format("bitmap_from_base64 decode failed: base64: {}", src_str));
+                    return Status::RuntimeError("bitmap_from_base64 decode failed: base64: {}",
+                                                std::string(src_str, src_size));
                 }
                 res.emplace_back(std::move(bitmap_val));
             }
diff --git a/regression-test/suites/query_p0/sql_functions/bitmap_functions/test_bitmap_function.groovy b/regression-test/suites/query_p0/sql_functions/bitmap_functions/test_bitmap_function.groovy
index 523cfc0a0cd8a0..5be83b29aa385a 100644
--- a/regression-test/suites/query_p0/sql_functions/bitmap_functions/test_bitmap_function.groovy
+++ b/regression-test/suites/query_p0/sql_functions/bitmap_functions/test_bitmap_function.groovy
@@ -927,4 +927,9 @@ suite("test_bitmap_function") {
     // BITMAP_FROM_ARRAY
     sql """ set experimental_enable_nereids_planner=true; """
     qt_sql """ select bitmap_to_string(BITMAP_FROM_ARRAY([]));"""
+
+    test {
+        sql """ SELECT bitmap_from_base64('CQoL') AS result; """ 
+        exception "bitmap_from_base64 decode failed"
+    }
 }