diff --git a/src/main/java/org/springframework/data/jpa/repository/query/StringQuery.java b/src/main/java/org/springframework/data/jpa/repository/query/StringQuery.java
index eef1ce951..d23a521c5 100644
--- a/src/main/java/org/springframework/data/jpa/repository/query/StringQuery.java
+++ b/src/main/java/org/springframework/data/jpa/repository/query/StringQuery.java
@@ -165,7 +165,7 @@ class StringQuery {
 			builder.append("(");
 			builder.append("%?(\\?(\\d+))%?"); // position parameter
 			builder.append("|"); // or
-			builder.append("%?(:(\\w+))%?"); // named parameter;
+			builder.append("%?(:([\\p{L}\\w]+))%?"); // named parameter;
 			builder.append(")");
 			builder.append("\\)?"); // optional braces around paramters
 
diff --git a/src/test/java/org/springframework/data/jpa/repository/query/StringQueryUnitTests.java b/src/test/java/org/springframework/data/jpa/repository/query/StringQueryUnitTests.java
index 6db2514a4..b7aeae944 100644
--- a/src/test/java/org/springframework/data/jpa/repository/query/StringQueryUnitTests.java
+++ b/src/test/java/org/springframework/data/jpa/repository/query/StringQueryUnitTests.java
@@ -246,6 +246,62 @@ public class StringQueryUnitTests {
 		query.getBindingFor(null);
 	}
 
+	/**
+	 * @see DATAJPA-545
+	 */
+	@Test
+	public void detectsInBindingWithSpecialFrenchCharactersInParentheses() {
+
+		StringQuery query = new StringQuery("select * from MyEntity where abonnés in (:abonnés)");
+
+		List<ParameterBinding> bindings = query.getParameterBindings();
+
+		assertThat(bindings, hasSize(1));
+		assertNamedBinding(InParameterBinding.class, "abonnés", bindings.get(0));
+	}
+
+	/**
+	 * @see DATAJPA-545
+	 */
+	@Test
+	public void detectsInBindingWithSpecialCharactersInParentheses() {
+
+		StringQuery query = new StringQuery("select * from MyEntity where øre in (:øre)");
+
+		List<ParameterBinding> bindings = query.getParameterBindings();
+
+		assertThat(bindings, hasSize(1));
+		assertNamedBinding(InParameterBinding.class, "øre", bindings.get(0));
+	}
+
+	/**
+	 * @see DATAJPA-545
+	 */
+	@Test
+	public void detectsInBindingWithSpecialAsianCharactersInParentheses() {
+
+		StringQuery query = new StringQuery("select * from MyEntity where 생일 in (:생일)");
+
+		List<ParameterBinding> bindings = query.getParameterBindings();
+
+		assertThat(bindings, hasSize(1));
+		assertNamedBinding(InParameterBinding.class, "생일", bindings.get(0));
+	}
+
+	/**
+	 * @see DATAJPA-545
+	 */
+	@Test
+	public void detectsInBindingWithSpecialCharactersAndWordCharactersMixedInParentheses() {
+
+		StringQuery query = new StringQuery("select * from MyEntity where foo in (:ab1babc생일233)");
+
+		List<ParameterBinding> bindings = query.getParameterBindings();
+
+		assertThat(bindings, hasSize(1));
+		assertNamedBinding(InParameterBinding.class, "ab1babc생일233", bindings.get(0));
+	}
+
 	private void assertPositionalBinding(Class<? extends ParameterBinding> bindingType, Integer position,
 			ParameterBinding expectedBinding) {