diff --git a/raster3d/r3.info/main.c b/raster3d/r3.info/main.c
index 17b8b501f53..1a12cfcc126 100644
--- a/raster3d/r3.info/main.c
+++ b/raster3d/r3.info/main.c
@@ -48,7 +48,7 @@ int main(int argc, char *argv[])
 {
     const char *mapset;
     char *line = NULL;
-    char tmp1[TMP_LENGTH], tmp2[TMP_LENGTH], tmp3[TMP_LENGTH];
+    char tmp1[TMP_LENGTH] = "", tmp2[TMP_LENGTH] = "", tmp3[TMP_LENGTH] = "";
     char timebuff[256];
     int i;
     FILE *out;