diff --git a/src/path.c b/src/path.c
index e2bdc9419ea..3e3431575ec 100644
--- a/src/path.c
+++ b/src/path.c
@@ -57,7 +57,7 @@ alloc_array(Py_ssize_t count) {
     if ((unsigned long long)count > (SIZE_MAX / (2 * sizeof(double))) - 1) {
         return ImagingError_MemoryError();
     }
-    xy = calloc(2 * count * sizeof(double) + 1, sizeof(double));
+    xy = calloc(2 * count + 1, sizeof(double));
     if (!xy) {
         ImagingError_MemoryError();
     }