diff --git a/src/OutputParser.groovy b/src/OutputParser.groovy
index 8795f49..ba0d7fa 100644
--- a/src/OutputParser.groovy
+++ b/src/OutputParser.groovy
@@ -15,14 +15,18 @@ class OutputParser {
 
     public void print(String line) {
       if(isJson(line)) {
-        super.print(line)
+        super.print(sanitize(line))
       } else {
         this.err.print(line)
       }
     }
 
     boolean isJson(txt) {
-      return txt.startsWith("{");
+      return txt.trim().startsWith("{")
+    }
+
+    String sanitize(line) {
+      return line.replaceFirst('(?s)### \\[PMD properties\\][^"]*', '')
     }
   }
 }
diff --git a/test/OutputParserTest.groovy b/test/OutputParserTest.groovy
index c7e261b..159c555 100644
--- a/test/OutputParserTest.groovy
+++ b/test/OutputParserTest.groovy
@@ -21,14 +21,66 @@ class OutputParserTest {
   public void redirectNonJsonInput() {
     parser.out.print("This is a warning")
     assert out.toString("UTF-8").isEmpty()
-    assert "This is a warning", err.toString("UTF-8")
+    assertEquals "This is a warning", err.toString("UTF-8")
   }
 
   @Test
   public void printJsonLines() {
     parser.out.print("{}")
     assert err.toString("UTF-8").isEmpty()
-    assert "{}", out.toString("UTF-8")
+    assertEquals "{}", out.toString("UTF-8")
   }
-}
 
+  @Test
+  public void removeDeveloperPropertiesFromReadup() {
+    def issue = '''
+    {
+      "type": "issue",
+        "check_name": "AvoidMultipleUnaryOperators",
+        "description": "Using multiple unary operators may be a bug, and/or is confusing.",
+        "content": {
+          "body": "## AvoidMultipleUnaryOperators\n\nSince: PMD 4.2\n\nPriority: Medium High\n\n[Categories](https://github.com/codeclimate/spec/blob/master/SPEC.md#categories): Style\n\n[Remediation Points](https://github.com/codeclimate/spec/blob/master/SPEC.md#remediation-points): 50000\n\nThe use of multiple unary operators may be problematic, and/or confusing. Ensure that the intended usage is not a bug, or consider simplifying the expression.\n\n### Example:\n\n```java\n\n\n// These are typo bugs, or at best needlessly complex and confusing:\nint i = - -1;\nint j = + - +1;\nint z = ~~2;\nboolean b = !!true;\nboolean c = !!!true;\n\n// These are better:\nint i = 1;\nint j = -1;\nint z = 2;\nboolean b = true;\nboolean c = false;\n\n// And these just make your brain hurt:\nint i = ~-2;\nint j = -~7;\n\n \n``` \n\n### [PMD properties](http://pmd.github.io/pmd-6.0.1/customizing/pmd-developer.html)\n\nName | Value | Description\n--- | --- | ---\nviolationSuppressRegex | | Suppress violations with messages matching a regular expression\nviolationSuppressXPath | | Suppress violations on nodes which match a given relative XPath expression.\n"
+        },
+        "categories": [
+          "Style"
+        ],
+        "location": {
+          "path": "src/main/java/com/google/common/collect/Lists.java",
+          "lines": {
+            "begin": 1007,
+            "end": 1007
+          }
+        },
+        "severity": "normal",
+        "remediation_points": 50000
+    }
+    '''
+    def expectedIssue = '''
+    {
+      "type": "issue",
+        "check_name": "AvoidMultipleUnaryOperators",
+        "description": "Using multiple unary operators may be a bug, and/or is confusing.",
+        "content": {
+          "body": "## AvoidMultipleUnaryOperators\n\nSince: PMD 4.2\n\nPriority: Medium High\n\n[Categories](https://github.com/codeclimate/spec/blob/master/SPEC.md#categories): Style\n\n[Remediation Points](https://github.com/codeclimate/spec/blob/master/SPEC.md#remediation-points): 50000\n\nThe use of multiple unary operators may be problematic, and/or confusing. Ensure that the intended usage is not a bug, or consider simplifying the expression.\n\n### Example:\n\n```java\n\n\n// These are typo bugs, or at best needlessly complex and confusing:\nint i = - -1;\nint j = + - +1;\nint z = ~~2;\nboolean b = !!true;\nboolean c = !!!true;\n\n// These are better:\nint i = 1;\nint j = -1;\nint z = 2;\nboolean b = true;\nboolean c = false;\n\n// And these just make your brain hurt:\nint i = ~-2;\nint j = -~7;\n\n \n``` \n\n"
+        },
+        "categories": [
+          "Style"
+        ],
+        "location": {
+          "path": "src/main/java/com/google/common/collect/Lists.java",
+          "lines": {
+            "begin": 1007,
+            "end": 1007
+          }
+        },
+        "severity": "normal",
+        "remediation_points": 50000
+    }
+    '''
+
+    parser.out.print(issue)
+
+    assert err.toString("UTF-8").isEmpty()
+    assertEquals expectedIssue, out.toString("UTF-8")
+  }
+}