diff --git a/afl_transforms/tools/zax/test/test_mystrlen.cpp b/afl_transforms/tools/zax/test/test_mystrlen.cpp
index e933cd17394fec957693b574e1657fbb554a2138..0125b69b978c750d056238dd7c06acdebaab8a6e 100644
--- a/afl_transforms/tools/zax/test/test_mystrlen.cpp
+++ b/afl_transforms/tools/zax/test/test_mystrlen.cpp
@@ -1,9 +1,10 @@
 #include <iostream>
+
 using namespace std;
 
 size_t my_strlen(char *arg)
 {
-	auto count = 0;
+	int count = 0;
 	while (*arg!='\0')
 	{
 		count++;