diff --git a/src/format/KeePass1Reader.cpp b/src/format/KeePass1Reader.cpp
index a15c832b..929632bf 100644
--- a/src/format/KeePass1Reader.cpp
+++ b/src/format/KeePass1Reader.cpp
@@ -49,7 +49,12 @@ private:
 
 
 KeePass1Reader::KeePass1Reader()
-    : m_error(false)
+    : m_db(Q_NULLPTR)
+    , m_tmpParent(Q_NULLPTR)
+    , m_device(Q_NULLPTR)
+    , m_encryptionFlags(0)
+    , m_transformRounds(0)
+    , m_error(false)
 {
 }
 
diff --git a/src/format/KeePass2Reader.cpp b/src/format/KeePass2Reader.cpp
index 20d20d86..2a25001c 100644
--- a/src/format/KeePass2Reader.cpp
+++ b/src/format/KeePass2Reader.cpp
@@ -33,8 +33,12 @@
 #include "streams/SymmetricCipherStream.h"
 
 KeePass2Reader::KeePass2Reader()
-    : m_error(false)
+    : m_device(Q_NULLPTR)
+    , m_headerStream(Q_NULLPTR)
+    , m_error(false)
+    , m_headerEnd(false)
     , m_saveXml(false)
+    , m_db(Q_NULLPTR)
 {
 }
 
diff --git a/src/format/KeePass2XmlReader.cpp b/src/format/KeePass2XmlReader.cpp
index ed5715cb..9af89db7 100644
--- a/src/format/KeePass2XmlReader.cpp
+++ b/src/format/KeePass2XmlReader.cpp
@@ -34,6 +34,7 @@ KeePass2XmlReader::KeePass2XmlReader()
     : m_randomStream(Q_NULLPTR)
     , m_db(Q_NULLPTR)
     , m_meta(Q_NULLPTR)
+    , m_tmpParent(Q_NULLPTR)
     , m_error(false)
     , m_strictMode(false)
 {
diff --git a/src/streams/SymmetricCipherStream.cpp b/src/streams/SymmetricCipherStream.cpp
index 28525b39..c713e522 100644
--- a/src/streams/SymmetricCipherStream.cpp
+++ b/src/streams/SymmetricCipherStream.cpp
@@ -24,6 +24,7 @@ SymmetricCipherStream::SymmetricCipherStream(QIODevice* baseDevice, SymmetricCip
     , m_bufferPos(0)
     , m_bufferFilling(false)
     , m_error(false)
+    , m_isInitalized(false)
 {
 }