diff --git a/src/CalcManager/Ratpack/conv.cpp b/src/CalcManager/Ratpack/conv.cpp
index 8de52a6e..2ae5f5c3 100644
--- a/src/CalcManager/Ratpack/conv.cpp
+++ b/src/CalcManager/Ratpack/conv.cpp
@@ -185,7 +185,7 @@ NUMBER _createnum( _In_ uint32_t size )
 {
     NUMBER num = NUMBER();
     // Fill mantissa vector with zeros
-    num.mant.insert(num.mant.end(), size - 1, 0);
+    num.mant.insert(num.mant.end(), size, 0);
     return( num );
 }
 
diff --git a/src/CalcManager/Ratpack/ratpak.h b/src/CalcManager/Ratpack/ratpak.h
index 00095c36..9a8fe5cd 100644
--- a/src/CalcManager/Ratpack/ratpak.h
+++ b/src/CalcManager/Ratpack/ratpak.h
@@ -56,11 +56,11 @@ typedef enum eANGLE_TYPE ANGLE_TYPE;
 
 typedef struct _number
 {
-    int32_t sign;        // The sign of the mantissa, +1, or -1
-    int32_t cdigit;    // The number of digits, or what passes for digits in the
-                    // radix being used.
-    int32_t exp;       // The offset of digits from the radix point
-                    // (decimal point in radix 10)
+    int32_t sign = 1;    // The sign of the mantissa, +1, or -1
+    int32_t cdigit = 0;  // The number of digits, or what passes for digits in the
+                         // radix being used.
+    int32_t exp = 0;     // The offset of digits from the radix point
+                         // (decimal point in radix 10)
     std::vector<MANTTYPE> mant;
 } NUMBER;