diff --git a/include/indicators/terminal_size.hpp b/include/indicators/terminal_size.hpp
index 7b9e408..169dd5b 100644
--- a/include/indicators/terminal_size.hpp
+++ b/include/indicators/terminal_size.hpp
@@ -29,7 +29,7 @@ static inline size_t terminal_width() { return terminal_size().second; }
 namespace indicators {
 
 static inline std::pair<size_t, size_t> terminal_size() {
-  struct winsize size;
+  struct winsize size{};
   ioctl(STDOUT_FILENO, TIOCGWINSZ, &size);
   return {static_cast<size_t>(size.ws_row), static_cast<size_t>(size.ws_col)};
 }
diff --git a/single_include/indicators/indicators.hpp b/single_include/indicators/indicators.hpp
index 831b2f2..e8dc5a8 100644
--- a/single_include/indicators/indicators.hpp
+++ b/single_include/indicators/indicators.hpp
@@ -687,7 +687,7 @@ static inline size_t terminal_width() { return terminal_size().second; }
 namespace indicators {
 
 static inline std::pair<size_t, size_t> terminal_size() {
-  struct winsize size;
+  struct winsize size{};
   ioctl(STDOUT_FILENO, TIOCGWINSZ, &size);
   return {static_cast<size_t>(size.ws_row), static_cast<size_t>(size.ws_col)};
 }