diff --git a/bmp.d b/bmp.d
index ff7f4b7..0c91059 100644
--- a/bmp.d
+++ b/bmp.d
@@ -112,6 +112,9 @@ MemoryImage readBmpIndirect(scope void delegate(void*, size_t) fread, bool lookF
 			throw new Exception("didn't get expected int value " /*~ to!string(got)*/, __FILE__, line);
 	}
 
+	uint offsetToBits;
+	int offsetToBitsAfterHeader;
+
 	if(lookForFileHeader) {
 		require1('B');
 		require1('M');
@@ -120,7 +123,7 @@ MemoryImage readBmpIndirect(scope void delegate(void*, size_t) fread, bool lookF
 		require2(0); // reserved
 		require2(0); 	// reserved
 
-		auto offsetToBits = read4();
+		offsetToBits = read4();
 		version(arsd_debug_bitmap_loader) { import core.stdc.stdio; printf("pixel data offset: 0x%08x\n", cast(uint)offsetToBits); }
 	}
 
@@ -129,6 +132,9 @@ MemoryImage readBmpIndirect(scope void delegate(void*, size_t) fread, bool lookF
 
 	version(arsd_debug_bitmap_loader) { import core.stdc.stdio; printf("size of bitmap info header: %d\n", cast(uint)sizeOfBitmapInfoHeader); }
 
+	if(offsetToBits > sizeOfBitmapInfoHeader + 14 /* 14 is the size size of file header */)
+		offsetToBitsAfterHeader = offsetToBits - sizeOfBitmapInfoHeader - 14;
+
 	int width, height, rdheight;
 
 	if (sizeOfBitmapInfoHeader == 12) {
@@ -425,12 +431,9 @@ MemoryImage readBmpIndirect(scope void delegate(void*, size_t) fread, bool lookF
 		// true color image
 		auto img = new TrueColorImage(width, height);
 
-		if(compression == 3)
-		foreach(idx; 0 .. 3) {
-			// so tbh I don't know what this actually is, it looks like an rgb mask, but why is it here?
-			// is this common or just the one file i happen to have?
-			// is there some header byte im missing?
-			read4();
+		foreach(counter; 0 .. offsetToBitsAfterHeader) {
+			// so tbh I don't know what this actually is, but we can know to skip it at least
+			read1();
 		}
 
 		// no palette, so straight into the data