diff --git a/src/leon/src/desauto.c b/src/leon/src/desauto.c
index 13c7a80..d4efae3 100644
--- a/src/leon/src/desauto.c
+++ b/src/leon/src/desauto.c
@@ -202,7 +202,7 @@ int main( int argc, char *argv[])
    char tempArg[8];
    enum { DESIGN_AUTO, DESIGN_ISO, MATRIX_AUTO, MATRIX_ISO, CODE_AUTO,
           CODE_ISO} computationType = DESIGN_AUTO;
-   char comment[1024];
+   char comment[1024] = "";
 
    /* Check whether the first parameters are iso, code, or matrix.
       Set the computation type. */