diff --git a/doc/corrade-changelog.dox b/doc/corrade-changelog.dox
index 14170ef3c..b2f7fb955 100644
--- a/doc/corrade-changelog.dox
+++ b/doc/corrade-changelog.dox
@@ -417,6 +417,9 @@ namespace Corrade {
     zero (see [mosra/corrade#102](https://github.com/mosra/corrade/issues/102))
 -   Fixed @ref Utility::Arguments to produce an error instead of asserting in
     case a positional argument is specified as named
+-   Deep @ref Utility::ConfigurationGroup assignments didn't properly reassign
+    the @relativeref{Utility::ConfigurationGroup,configuration()} pointer,
+    leading to an assertion on save
 -   @ref Corrade/Utility/StlForwardTuple.h was fixed to do a full
     @cpp #include <tuple> @ce on libstdc++ before version 7 as there a forward
     declaration is not available
diff --git a/src/Corrade/Utility/Configuration.cpp b/src/Corrade/Utility/Configuration.cpp
index 2f473ed55..99941f253 100644
--- a/src/Corrade/Utility/Configuration.cpp
+++ b/src/Corrade/Utility/Configuration.cpp
@@ -90,12 +90,6 @@ Configuration& Configuration::operator=(Configuration&& other) {
     return *this;
 }
 
-void Configuration::setConfigurationPointer(ConfigurationGroup* group) {
-    group->_configuration = this;
-
-    for(auto& g: group->_groups) setConfigurationPointer(g.group);
-}
-
 std::string Configuration::filename() const { return _filename; }
 
 void Configuration::setFilename(std::string filename) {
diff --git a/src/Corrade/Utility/Configuration.h b/src/Corrade/Utility/Configuration.h
index 69de1bff4..2310b80f4 100644
--- a/src/Corrade/Utility/Configuration.h
+++ b/src/Corrade/Utility/Configuration.h
@@ -372,8 +372,6 @@ class CORRADE_UTILITY_EXPORT Configuration: public ConfigurationGroup {
         CORRADE_UTILITY_LOCAL std::pair<Containers::ArrayView<const char>, const char*> parse(Containers::ArrayView<const char> in, ConfigurationGroup* group, const std::string& fullPath);
         CORRADE_UTILITY_LOCAL void save(std::ostream& out, const std::string& eol, ConfigurationGroup* group, const std::string& fullPath) const;
 
-        CORRADE_UTILITY_LOCAL void setConfigurationPointer(ConfigurationGroup* group);
-
         std::string _filename;
         InternalFlags _flags;
 };
diff --git a/src/Corrade/Utility/ConfigurationGroup.cpp b/src/Corrade/Utility/ConfigurationGroup.cpp
index d6980dbd7..73f0acc05 100644
--- a/src/Corrade/Utility/ConfigurationGroup.cpp
+++ b/src/Corrade/Utility/ConfigurationGroup.cpp
@@ -80,6 +80,12 @@ ConfigurationGroup::Values::Values(const Value* begin, const Value* end, bool sk
 
 ConfigurationGroup::ConfigurationGroup(): _configuration(nullptr) {}
 
+void ConfigurationGroup::setConfigurationPointer(Configuration* configuration) {
+    _configuration = configuration;
+    for(Group& group: _groups)
+        group.group->setConfigurationPointer(configuration);
+}
+
 ConfigurationGroup::ConfigurationGroup(Configuration* configuration): _configuration(configuration) {}
 
 ConfigurationGroup::ConfigurationGroup(const ConfigurationGroup& other): _values(other._values), _groups(other._groups), _configuration(nullptr) {
@@ -91,7 +97,7 @@ ConfigurationGroup::ConfigurationGroup(const ConfigurationGroup& other): _values
 ConfigurationGroup::ConfigurationGroup(ConfigurationGroup&& other): _values(std::move(other._values)), _groups(std::move(other._groups)), _configuration(nullptr) {
     /* Reset configuration pointer for subgroups */
     for(Group& group: _groups)
-        group.group->_configuration = nullptr;
+        group.group->setConfigurationPointer(nullptr);
 }
 
 ConfigurationGroup& ConfigurationGroup::operator=(const ConfigurationGroup& other) {
@@ -106,7 +112,7 @@ ConfigurationGroup& ConfigurationGroup::operator=(const ConfigurationGroup& othe
     /* Deep copy groups */
     for(Group& group: _groups) {
         group.group = new ConfigurationGroup(*group.group);
-        group.group->_configuration = _configuration;
+        group.group->setConfigurationPointer(_configuration);
     }
 
     return *this;
@@ -123,7 +129,7 @@ ConfigurationGroup& ConfigurationGroup::operator=(ConfigurationGroup&& other) {
 
     /* Redirect configuration pointer for subgroups */
     for(Group& group: _groups)
-        group.group->_configuration = _configuration;
+        group.group->setConfigurationPointer(_configuration);
 
     return *this;
 }
@@ -205,7 +211,7 @@ void ConfigurationGroup::addGroup(const std::string& name, ConfigurationGroup* g
     /* Set configuration pointer to actual */
     CORRADE_ASSERT(!group->_configuration,
         "Utility::Configuration::addGroup(): the group is already part of some configuration", );
-    group->_configuration = _configuration;
+    group->setConfigurationPointer(_configuration);
 
     CORRADE_ASSERT(!name.empty(),
         "Utility::ConfigurationGroup::addGroup(): empty group name", );
diff --git a/src/Corrade/Utility/ConfigurationGroup.h b/src/Corrade/Utility/ConfigurationGroup.h
index c14776355..2eeee67c9 100644
--- a/src/Corrade/Utility/ConfigurationGroup.h
+++ b/src/Corrade/Utility/ConfigurationGroup.h
@@ -476,7 +476,11 @@ class CORRADE_UTILITY_EXPORT ConfigurationGroup {
             ConfigurationGroup* group;
         };
 
+        /* Used by Configuration constructor */
         CORRADE_UTILITY_LOCAL explicit ConfigurationGroup(Configuration* configuration);
+        /* Used by operator=() and addGroup(ConfigurationGroup*), and by
+           Configuration */
+        CORRADE_UTILITY_LOCAL void setConfigurationPointer(Configuration* configuration);
 
         CORRADE_UTILITY_LOCAL std::vector<Group>::iterator findGroup(const std::string& name, unsigned int index);
         CORRADE_UTILITY_LOCAL std::vector<Group>::const_iterator findGroup(const std::string& name, unsigned int index) const;