diff --git a/sbroad-core/src/frontend/sql/ir/tests.rs b/sbroad-core/src/frontend/sql/ir/tests.rs
index ca9f87804dba56b79fa14c9bf8c20d25d5e20060..3009a16575eba68c99145f86aa73786cb53a2439 100644
--- a/sbroad-core/src/frontend/sql/ir/tests.rs
+++ b/sbroad-core/src/frontend/sql/ir/tests.rs
@@ -341,5 +341,23 @@ fn front_sql19() {
     assert_eq!(expected_explain, plan.as_explain().unwrap());
 }
 
+// Check double angle quotation marks in the strings
+#[test]
+fn front_sql20() {
+    let input = r#"SELECT "identification_number" FROM "hash_testing"
+        WHERE "product_code" = '«123»'"#;
+
+    let plan = sql_to_optimized_ir(input, vec![]);
+
+    let expected_explain = String::from(
+        r#"projection ("hash_testing"."identification_number" -> "identification_number")
+    selection ROW("hash_testing"."product_code") = ROW('«123»')
+        scan "hash_testing"
+"#,
+    );
+
+    assert_eq!(expected_explain, plan.as_explain().unwrap());
+}
+
 #[cfg(test)]
 mod params;
diff --git a/sbroad-core/src/frontend/sql/query.pest b/sbroad-core/src/frontend/sql/query.pest
index 16a433ab8b77025958934d9d9df71513666792d2..ffc3f3e4d91714e08ea34b6fa58f5b82e1274569 100644
--- a/sbroad-core/src/frontend/sql/query.pest
+++ b/sbroad-core/src/frontend/sql/query.pest
@@ -113,7 +113,7 @@ Punctuation = _{
     | INITIAL_PUNCTUATION
     | "." | "?" | "!" | ":" | ";" | ","
 }
-Other = _{ "\\" | "/" | "@" | "%" | "&" | "*" | "#" | "§" | WHITESPACE }
+Other = _{ "\\" | "/" | "@" | "%" | "&" | "*" | "#" | "§" | "»" | WHITESPACE }
 
 Value = _{ Parameter | Row | True | False | Null | Decimal | Double | Unsigned | Integer | Concat | ConcatLeft }
     True = @{ ^"true" }