diff --git a/src/domain/logxlogydomain.cpp b/src/domain/logxlogydomain.cpp
index c7c07d1..32e4a89 100644
--- a/src/domain/logxlogydomain.cpp
+++ b/src/domain/logxlogydomain.cpp
@@ -93,7 +93,7 @@ void LogXLogYDomain::zoomOut(const QRectF &rect)
     qreal maxX = qPow(m_logBaseX, newLogMaxX);
 
     qreal ratioY = m_size.height()/rect.height();
-    qreal newLogMinY = m_logMaxY - (m_logMaxY - m_logMinY) / ratioY;
+    qreal newLogMinY = m_logMinY - (m_logMaxY - m_logMinY) / ratioY;
     qreal newLogMaxY = m_logMaxY + (m_logMaxY - m_logMinY) / ratioY;
     qreal minY = qPow(m_logBaseY, newLogMinY);
     qreal maxY = qPow(m_logBaseY, newLogMaxY);
diff --git a/src/domain/xlogydomain.cpp b/src/domain/xlogydomain.cpp
index a0bdb01..0ded403 100644
--- a/src/domain/xlogydomain.cpp
+++ b/src/domain/xlogydomain.cpp
@@ -91,7 +91,7 @@ void XLogYDomain::zoomOut(const QRectF &rect)
     maxX = minX + dx * m_size.width();
 
     qreal ratioY = m_size.height()/rect.height();
-    qreal newLogMinY = m_logMaxY - (m_logMaxY - m_logMinY) / ratioY;
+    qreal newLogMinY = m_logMinY - (m_logMaxY - m_logMinY) / ratioY;
     qreal newLogMaxY = m_logMaxY + (m_logMaxY - m_logMinY) / ratioY;
     qreal minY = qPow(m_logBaseY, newLogMinY);
     qreal maxY = qPow(m_logBaseY, newLogMaxY);