diff --git a/src/target/semihosting_common.c b/src/target/semihosting_common.c
index ce6a79171..a41f8e4c8 100644
--- a/src/target/semihosting_common.c
+++ b/src/target/semihosting_common.c
@@ -944,6 +944,8 @@ int semihosting_common(struct target *target)
 					uint8_t *fn1 = malloc(len1+1);
 					uint8_t *fn2 = malloc(len2+1);
 					if (!fn1 || !fn2) {
+						free(fn1);
+						free(fn2);
 						semihosting->result = -1;
 						semihosting->sys_errno = ENOMEM;
 					} else {