diff --git a/src/documentation/content/xdocs/changes.xml b/src/documentation/content/xdocs/changes.xml
index be530cb5c..15f1a29d5 100644
--- a/src/documentation/content/xdocs/changes.xml
+++ b/src/documentation/content/xdocs/changes.xml
@@ -37,6 +37,7 @@
 
 		<!-- Don't forget to update status.xml too! -->
         <release version="3.1.1-alpha1" date="2008-??-??">
+           <action dev="POI-DEVELOPERS" type="add">45380 - Missing return keyword in ArrayPtg.toFormulaString()</action>
            <action dev="POI-DEVELOPERS" type="add">44958 - Record level support for Data Tables. (No formula parser support though)</action>
            <action dev="POI-DEVELOPERS" type="add">35583 - Include a version class, org.apache.poi.Version, to allow easy introspection of the POI version</action>
            <action dev="POI-DEVELOPERS" type="add">Allow the cloning of one HSSFCellStyle onto another, including cloning styles from one HSSFWorkbook onto another</action>
diff --git a/src/documentation/content/xdocs/status.xml b/src/documentation/content/xdocs/status.xml
index 2ec98011f..b77bcae69 100644
--- a/src/documentation/content/xdocs/status.xml
+++ b/src/documentation/content/xdocs/status.xml
@@ -34,6 +34,7 @@
 	<!-- Don't forget to update changes.xml too! -->
     <changes>
         <release version="3.1.1-alpha1" date="2008-??-??">
+           <action dev="POI-DEVELOPERS" type="add">45380 - Missing return keyword in ArrayPtg.toFormulaString()</action>
            <action dev="POI-DEVELOPERS" type="add">44958 - Record level support for Data Tables. (No formula parser support though)</action>
            <action dev="POI-DEVELOPERS" type="add">35583 - Include a version class, org.apache.poi.Version, to allow easy introspection of the POI version</action>
            <action dev="POI-DEVELOPERS" type="add">Allow the cloning of one HSSFCellStyle onto another, including cloning styles from one HSSFWorkbook onto another</action>
diff --git a/src/java/org/apache/poi/hssf/record/formula/ArrayPtg.java b/src/java/org/apache/poi/hssf/record/formula/ArrayPtg.java
index 43e3d04e3..97fad47b9 100644
--- a/src/java/org/apache/poi/hssf/record/formula/ArrayPtg.java
+++ b/src/java/org/apache/poi/hssf/record/formula/ArrayPtg.java
@@ -176,7 +176,7 @@ public final class ArrayPtg extends Ptg {
 			return ((Double)o).toString();
 		}
 		if (o instanceof Boolean) {
-			((Boolean)o).toString();
+			return ((Boolean)o).booleanValue() ? "TRUE" : "FALSE";
 		}
 		if (o instanceof ErrorConstant) {
 			return ((ErrorConstant)o).getText();
diff --git a/src/testcases/org/apache/poi/hssf/record/formula/TestArrayPtg.java b/src/testcases/org/apache/poi/hssf/record/formula/TestArrayPtg.java
index 2ba27e963..14bcde38b 100644
--- a/src/testcases/org/apache/poi/hssf/record/formula/TestArrayPtg.java
+++ b/src/testcases/org/apache/poi/hssf/record/formula/TestArrayPtg.java
@@ -102,7 +102,7 @@ public final class TestArrayPtg extends TestCase {
 	public void testElementOrderingInSpreadsheet() {
 		HSSFWorkbook wb = HSSFTestDataSamples.openSampleWorkbook("ex42564-elementOrder.xls");
 
-		// The formula has an array with 3 rows and 5 column 
+		// The formula has an array with 3 rows and 5 columns 
 		String formula = wb.getSheetAt(0).getRow(0).getCell((short)0).getCellFormula();
 		// TODO - These number literals should not have '.0'. Excel has different number rendering rules
 
@@ -111,4 +111,21 @@ public final class TestArrayPtg extends TestCase {
 		}
 		assertEquals("SUM({1.0,2.0,3.0;4.0,5.0,6.0;7.0,8.0,9.0;10.0,11.0,12.0;13.0,14.0,15.0})", formula);
 	}
+
+	public void testToFormulaString() {
+		ArrayPtg ptg = new ArrayPtg(new TestcaseRecordInputStream(ArrayPtg.sid, ENCODED_PTG_DATA));
+		
+		ptg.readTokenValues(new TestcaseRecordInputStream(0, ENCODED_CONSTANT_DATA));
+		
+		String actualFormula;
+		try {
+			actualFormula = ptg.toFormulaString(null);
+		} catch (IllegalArgumentException e) {
+			if (e.getMessage().equals("Unexpected constant class (java.lang.Boolean)")) {
+				throw new AssertionFailedError("Identified bug 45380");
+			}
+			throw e;
+		}
+		assertEquals("{TRUE,\"ABCD\";\"E\",0.0;FALSE,\"FG\"}", actualFormula);
+	}
 }