diff --git a/src/App/DocumentObject.cpp b/src/App/DocumentObject.cpp
index fa0c215981..667402b811 100644
--- a/src/App/DocumentObject.cpp
+++ b/src/App/DocumentObject.cpp
@@ -275,7 +275,7 @@ const char *DocumentObject::getNameInDocument() const
     // to an object that has been removed from the document. In this case we should rather
     // return 0.
     //assert(pcNameInDocument);
-    if (!pcNameInDocument)
+    if (!pcNameInDocument)
         return nullptr;
     return pcNameInDocument->c_str();
 }
@@ -1056,7 +1056,7 @@ void App::DocumentObject::_addBackLink(DocumentObject* newObj)
 int DocumentObject::setElementVisible(const char *element, bool visible) {
     for(auto ext : getExtensionsDerivedFromType<DocumentObjectExtension>()) {
         int ret = ext->extensionSetElementVisible(element,visible);
-        if(ret>=0)
+        if(ret>=0)
             return ret;
     }
 
@@ -1066,7 +1066,7 @@ int DocumentObject::setElementVisible(const char *element, bool visible) {
 int DocumentObject::isElementVisible(const char *element) const {
     for(auto ext : getExtensionsDerivedFromType<DocumentObjectExtension>()) {
         int ret = ext->extensionIsElementVisible(element);
-        if(ret>=0)
+        if(ret>=0)
             return ret;
     }
 
@@ -1259,7 +1259,7 @@ const std::string &DocumentObject::hiddenMarker() {
 }
 
 const char *DocumentObject::hasHiddenMarker(const char *subname) {
-    if(!subname)
+    if(!subname)
         return nullptr;
     const char *marker = strrchr(subname,'.');
     if(!marker)