diff --git a/src/main/java/com/checkmarx/ast/wrapper/Execution.java b/src/main/java/com/checkmarx/ast/wrapper/Execution.java
index a60101c0..0a2d9e35 100644
--- a/src/main/java/com/checkmarx/ast/wrapper/Execution.java
+++ b/src/main/java/com/checkmarx/ast/wrapper/Execution.java
@@ -61,7 +61,7 @@ static <T> T executeCommand(List<String> arguments,
                 output.append(line).append(LINE_SEPARATOR);
                 T parsedLine = lineParser.apply(line);
                 if (parsedLine != null) {
-                    executionResult = customValidator.apply(arguments, parsedLine) ? parsedLine : null;
+                    executionResult = customValidator.apply(arguments, parsedLine) ? parsedLine : executionResult;
                 }
             }
             process.waitFor();
diff --git a/src/test/java/com/checkmarx/ast/ScanTest.java b/src/test/java/com/checkmarx/ast/ScanTest.java
index 42f20027..fb0b3b3b 100644
--- a/src/test/java/com/checkmarx/ast/ScanTest.java
+++ b/src/test/java/com/checkmarx/ast/ScanTest.java
@@ -72,6 +72,13 @@ void testScanCreate() throws Exception {
         Assertions.assertEquals("Completed", wrapper.scanShow(UUID.fromString(scan.getId())).getStatus());
     }
 
+    @Test
+    void testScanCreateWithAsyncAndDebugFlag_ShouldParseScanResponseSuccessfully() throws Exception {
+        Map<String, String> params = commonParams();
+        Scan scan = wrapper.scanCreate(params, "--debug --async");
+        Assertions.assertNotNull(scan);
+    }
+
     @Test
     void testScanCancel() throws Exception {
         Map<String, String> params = commonParams();