diff --git a/src/c_interface.cpp b/src/c_interface.cpp
index d904ee8..12b1426 100644
--- a/src/c_interface.cpp
+++ b/src/c_interface.cpp
@@ -33,7 +33,7 @@ bool identiconpp_setup(const uint8_t columns, const uint8_t rows,
                        const uint8_t foreground_len,
                        const uint8_t padding[2])
 {
-    Identiconpp::algorithm algo;
+    Identiconpp::algorithm algo = Identiconpp::algorithm::ltr_symmetric;
     switch (type)
     {
         case identiconpp_ltr_symmetric:
diff --git a/src/checks.cpp b/src/checks.cpp
index bbf424b..99b9984 100644
--- a/src/checks.cpp
+++ b/src/checks.cpp
@@ -31,8 +31,8 @@ void Identiconpp::check_entropy(const string &digest, algorithm type)
         );
     }
 
-    uint16_t entropy_provided;
-    uint16_t entropy_required;
+    uint16_t entropy_provided = 0;
+    uint16_t entropy_required = 0;
     switch (type)
     {
         case algorithm::ltr_symmetric: