diff --git a/Strings/slides/busca/busca.pdf b/Strings/slides/busca/busca.pdf
index 847fea87..706b3509 100644
Binary files a/Strings/slides/busca/busca.pdf and b/Strings/slides/busca/busca.pdf differ
diff --git a/Strings/slides/busca/codes/search.cpp b/Strings/slides/busca/codes/search.cpp
index 438edd2a..7bdde721 100644
--- a/Strings/slides/busca/codes/search.cpp
+++ b/Strings/slides/busca/codes/search.cpp
@@ -4,7 +4,7 @@ int occurrences(const string& P, const string& S)
     int n = S.size();
     int occ = 0;
 
-    for (int i = 0; i <= n - m + 1; ++i) 
+    for (int i = 0; i < n - m + 1; ++i) 
         occ += (P == S.substr(i, m) ? 1 : 0);
 
     return occ;