diff --git a/src/modules/module_30000.c b/src/modules/module_30000.c
index 9ab9f9c63..3e10d5866 100644
--- a/src/modules/module_30000.c
+++ b/src/modules/module_30000.c
@@ -117,7 +117,7 @@ int module_hash_encode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSE
 
   u8 *out_buf = (u8 *) line_buf;
 
-  int out_len = snprintf((char *)out_buf, 4, "md5$");
+  int out_len = snprintf ((char *) out_buf, line_size, "md5$");
 
   out_len += generic_salt_encode (hashconfig, (const u8 *) salt->salt_buf, (const int) salt->salt_len, out_buf + out_len);
 
diff --git a/src/modules/module_30120.c b/src/modules/module_30120.c
index 523fa4439..1e591b7bd 100644
--- a/src/modules/module_30120.c
+++ b/src/modules/module_30120.c
@@ -177,7 +177,7 @@ int module_hash_encode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSE
 
   u8 *out_buf = (u8 *) line_buf;
 
-  int out_len = snprintf((char *)out_buf, 7, "sha256$");
+  int out_len = snprintf ((char *) out_buf, line_size, "sha256$");
 
   out_len += generic_salt_encode (hashconfig, (const u8 *) salt->salt_buf, (const int) salt->salt_len, out_buf + out_len);