diff --git a/stim/image/image.h b/stim/image/image.h
index 31e7edb..9eb07ed 100644
--- a/stim/image/image.h
+++ b/stim/image/image.h
@@ -134,7 +134,7 @@ public:
 		memcpy(img, I.img, bytes());
 		return *this;
 	}
-
+#ifdef USING_OPENCV
 	void load_bmp(std::string filename) {
 		stim::bmp bitmap;
 		bitmap.open(filename);											//load the bitmap and read the headers
@@ -145,6 +145,7 @@ public:
 		}
 		bitmap.close();													//close the bitmap file
 	}
+#endif
 
 	//save a Netpbm file
 	void load_netpbm(std::string filename) {
--
libgit2 0.21.4