diff --git a/plugins/channeltx/modais/aismodsource.cpp b/plugins/channeltx/modais/aismodsource.cpp
index 6dce17ffd..06e586b24 100644
--- a/plugins/channeltx/modais/aismodsource.cpp
+++ b/plugins/channeltx/modais/aismodsource.cpp
@@ -35,9 +35,16 @@ AISModSource::AISModSource() :
     m_scopeSink(nullptr),
     m_magsq(0.0),
     m_levelCalcCount(0),
+    m_rmsLevel(0.0),
+    m_peakLevelOut(0.0),
     m_peakLevel(0.0f),
     m_levelSum(0.0f),
+    m_sampleIdx(0),
+    m_pow(0.0f),
+    m_powRamp(0.0f),
     m_state(idle),
+    m_waitCounter(0),
+    m_nrziBit(0),
     m_byteIdx(0),
     m_bitIdx(0),
     m_last5Bits(0),