diff --git a/patterns/elf.hexpat b/patterns/elf.hexpat
index 90c19a2..f34774f 100644
--- a/patterns/elf.hexpat
+++ b/patterns/elf.hexpat
@@ -563,7 +563,7 @@ struct Elf32_Phdr {
     PF p_flags;
     Elf32_Word p_align;
     
-    if (p_offset > 0 && p_filesz > 0 && (p_offset + p_filesz) < std::mem::size() && p_filesz < std::mem::size())
+    if (p_offset >= 0 && p_filesz > 0 && (p_offset + p_filesz) <= std::mem::size() && p_filesz <= std::mem::size())
         u8 p_data[p_filesz] @ p_offset [[sealed]];
 };
 
@@ -577,7 +577,7 @@ struct Elf64_Phdr {
     Elf64_Xword p_memsz;
     Elf64_Xword p_align;
     
-    if (p_offset > 0 && p_filesz > 0 && (p_offset + p_filesz) < std::mem::size() && p_filesz < std::mem::size())
+    if (p_offset >= 0 && p_filesz > 0 && (p_offset + p_filesz) <= std::mem::size() && p_filesz <= std::mem::size())
         u8 p_data[p_filesz] @ p_offset [[sealed]];
 };
 
@@ -819,4 +819,4 @@ fn main() {
             );
         }
     }
-};
\ No newline at end of file
+};