diff --git a/src/Image.cc b/src/Image.cc
index 06dd564ae..d40e92145 100644
--- a/src/Image.cc
+++ b/src/Image.cc
@@ -1408,6 +1408,7 @@ Image::rotatePixels(uint8_t* pixels, int width, int height, int channels,
         std::memcpy(pixels + new_idx, unrotated + orig_idx, channels);
       }
     }
+    delete[] unrotated;
   };
 
   auto rotate270 = [](uint8_t* pixels, int width, int height, int channels) {
@@ -1424,6 +1425,7 @@ Image::rotatePixels(uint8_t* pixels, int width, int height, int channels,
         std::memcpy(pixels + new_idx, unrotated + orig_idx, channels);
       }
     }
+    delete[] unrotated;
   };
 
   switch (orientation) {