diff --git a/src/p_lx_elf.cpp b/src/p_lx_elf.cpp
index f85548ba..d7f4b242 100644
--- a/src/p_lx_elf.cpp
+++ b/src/p_lx_elf.cpp
@@ -1438,7 +1438,7 @@ bool PackLinuxElf32::canPack()
             load_va = get_te32(&phdr->p_vaddr);
             unsigned file_offset = get_te32(&phdr->p_offset);
             if (~page_mask & file_offset) {
-                if ((~page_mask & load_va) == file_offset) {
+                if ((~page_mask & (unsigned)load_va) == file_offset) {
                     throwCantPack("Go-language PT_LOAD: try hemfix.c, or try '--force-execve'");
                     // Fixing it inside upx fails because packExtent() reads original file.
                 }