3 files changed, 6 insertions, 0 deletions
diff --git a/src/Generating/BioGen.cpp b/src/Generating/BioGen.cpp
index 47ba080c6..3e3a034b2 100644
--- a/src/Generating/BioGen.cpp
+++ b/src/Generating/BioGen.cpp
@@ -135,7 +135,9 @@ cBioGenCache::cBioGenCache(cBiomeGen * a_BioGenToCache, int a_CacheSize) :
 cBioGenCache::~cBioGenCache()
 {
 	delete[] m_CacheData;
+	m_CacheData = NULL;
 	delete[] m_CacheOrder;
+	m_CacheOrder = NULL;
 }
 
 
diff --git a/src/Generating/CompoGen.cpp b/src/Generating/CompoGen.cpp
index 688d19c40..2da285d72 100644
--- a/src/Generating/CompoGen.cpp
+++ b/src/Generating/CompoGen.cpp
@@ -672,7 +672,9 @@ cCompoGenCache::cCompoGenCache(cTerrainCompositionGen & a_Underlying, int a_Cach
 cCompoGenCache::~cCompoGenCache()
 {
 	delete[] m_CacheData;
+	m_CacheData = NULL;
 	delete[] m_CacheOrder;
+	m_CacheOrder = NULL;
 }
 
 
diff --git a/src/Generating/HeiGen.cpp b/src/Generating/HeiGen.cpp
index 25ac912fd..202f7db7e 100644
--- a/src/Generating/HeiGen.cpp
+++ b/src/Generating/HeiGen.cpp
@@ -142,7 +142,9 @@ cHeiGenCache::cHeiGenCache(cTerrainHeightGen & a_HeiGenToCache, int a_CacheSize)
 cHeiGenCache::~cHeiGenCache()
 {
 	delete[] m_CacheData;
+	m_CacheData = NULL;
 	delete[] m_CacheOrder;
+	m_CacheOrder = NULL;
 }