diff --git a/src/map.c b/src/map.c
index 73e057ed6..577d4187c 100644
--- a/src/map.c
+++ b/src/map.c
@@ -161,9 +161,8 @@ static int sample_conv_map(const struct arg *arg_p, struct sample *smp, void *pr
 	if (pat) {
 		/* Copy sample. */
 		if (pat->data) {
-			smp->data.type = pat->data->type;
+			smp->data = *pat->data;
 			smp->flags |= SMP_F_CONST;
-			memcpy(&smp->data.u, &pat->data->u, sizeof(smp->data.u));
 			return 1;
 		}
 
diff --git a/src/vars.c b/src/vars.c
index ed30846bf..3ad0c1694 100644
--- a/src/vars.c
+++ b/src/vars.c
@@ -249,9 +249,8 @@ static int smp_fetch_var(const struct arg *args, struct sample *smp, const char
 		return 0;
 
 	/* Copy sample. */
-	smp->data.type = var->data.type;
+	smp->data = var->data;
 	smp->flags |= SMP_F_CONST;
-	memcpy(&smp->data.u, &var->data.u, sizeof(smp->data.u));
 	return 1;
 }
 
@@ -442,9 +441,8 @@ int vars_get_by_name(const char *name, size_t len, struct stream *strm, struct s
 		return 0;
 
 	/* Copy sample. */
-	smp->data.type = var->data.type;
+	smp->data = var->data;
 	smp->flags = SMP_F_CONST;
-	memcpy(&smp->data.u, &var->data.u, sizeof(smp->data.u));
 	return 1;
 }
 
@@ -476,9 +474,8 @@ int vars_get_by_desc(const struct var_desc *var_desc, struct stream *strm, struc
 		return 0;
 
 	/* Copy sample. */
-	smp->data.type = var->data.type;
+	smp->data = var->data;
 	smp->flags = SMP_F_CONST;
-	memcpy(&smp->data.u, &var->data.u, sizeof(smp->data.u));
 	return 1;
 }