diff --git a/source/imagesearch2.c b/source/imagesearch2.c
index f112e3df..5c45255c 100644
--- a/source/imagesearch2.c
+++ b/source/imagesearch2.c
@@ -18,7 +18,7 @@ unsigned int imagesearch2(unsigned int * restrict result, unsigned int * start,
 
     // Try to locate the focused pixel in the middle of the sprite
     unsigned int * c = s + w/4 + h/4 * w;
-    unsigned int * last_pixel = s + w + h * w;
+    unsigned int * last_pixel = s + h * w;
     while(c < last_pixel) {
         for (unsigned int * e = c + w / 2; c < e; c++) {
             if ( *((unsigned char *) c + 3) ) {
diff --git a/source/imagesearchall2.c b/source/imagesearchall2.c
index fdb095a9..eb7b85cd 100644
--- a/source/imagesearchall2.c
+++ b/source/imagesearchall2.c
@@ -20,7 +20,7 @@ unsigned int imagesearchall2(unsigned int * restrict result, unsigned int capaci
 
     // Try to locate the focused pixel in the middle of the sprite
     unsigned int * c = s + w/4 + h/4 * w;
-    unsigned int * last_pixel = s + w + h * w;
+    unsigned int * last_pixel = s + h * w;
     while(c < last_pixel) {
         for (unsigned int * e = c + w / 2; c < e; c++) {
             if ( *((unsigned char *) c + 3) ) {