diff --git a/src/da65/scanner.c b/src/da65/scanner.c
index 143bb2636..2bb80a8ef 100644
--- a/src/da65/scanner.c
+++ b/src/da65/scanner.c
@@ -413,6 +413,7 @@ Again:
         case '\"':
             NextChar ();
             I = 0;
+            InfoSVal[0] = '\0';
             while (C != EOF && C != '\"') {
                 if (GetEncodedChar (InfoSVal, &I, sizeof InfoSVal) < 0) {
                     if (C == EOF) {