1 files changed, 1 insertions, 1 deletions
diff --git a/src/jniproj.cpp b/src/jniproj.cpp
index 59b5b2a0..6f441529 100644
--- a/src/jniproj.cpp
+++ b/src/jniproj.cpp
@@ -279,7 +279,7 @@ JNIEXPORT jcharArray JNICALL Java_org_proj4_PJ_getAxisDirections
 {
     PJ *pj = getPJ(env, object);
     if (pj) {
-        int length = strlen(pj->axis);
+        int length = static_cast<int>(strlen(pj->axis));
         jcharArray array = env->NewCharArray(length);
         if (array) {
             jchar* axis = env->GetCharArrayElements(array, nullptr);