diff --git a/src/numerics/NonlinearSolver.cpp b/src/numerics/NonlinearSolver.cpp
index a5f350f84..7261f921f 100644
--- a/src/numerics/NonlinearSolver.cpp
+++ b/src/numerics/NonlinearSolver.cpp
@@ -1267,7 +1267,7 @@ namespace Cantera {
       /*
        *  Factor the Hessian
        */
-      int info;
+      int info = 0;
       ct_dpotrf(ctlapack::UpperTriangular, neq_, &(*(HessianPtr_->begin())), neq_, info);
       if (info) {
 	if (m_print_flag >= 2) {
@@ -1834,7 +1834,7 @@ namespace Cantera {
     doublereal *y1 = DATA_PTR(m_wksp);
     doublereal *ydot1 = DATA_PTR(m_wksp_2);
     doublereal sLen;
-    doublereal alpha;
+    doublereal alpha = 0;
 
     doublereal residSteepBest = 1.0E300;
     doublereal residSteepLinBest = 0.0;
@@ -3729,7 +3729,8 @@ namespace Cantera {
     int i, j;
     double* col_j;
     int info;
-    doublereal ysave, ydotsave, dy;
+    doublereal ysave, dy;
+    doublereal ydotsave = 0;
     int retn = 1;
     
     /*
diff --git a/src/zeroD/FlowReactor.cpp b/src/zeroD/FlowReactor.cpp
index 244541f7c..e36b79f6d 100644
--- a/src/zeroD/FlowReactor.cpp
+++ b/src/zeroD/FlowReactor.cpp
@@ -16,8 +16,8 @@ namespace Cantera
 FlowReactor::FlowReactor() :
     Reactor(),
     m_fctr(1.0e10),
-    m_speed0(0.0),
-    m_dist(0.0)
+    m_dist(0.0),
+    m_speed0(0.0)
 {
 }