diff --git a/src/p_lx_elf.cpp b/src/p_lx_elf.cpp
index 9cd3107a..e2af7287 100644
--- a/src/p_lx_elf.cpp
+++ b/src/p_lx_elf.cpp
@@ -1601,6 +1601,9 @@ PackLinuxElf32::buildLinuxLoader(
         ||  this->e_machine==Elf32_Ehdr::EM_ARM) {
             addLoader((opt->o_unix.android_old ? "UMF_ANDROID" : "UMF_LINUX"));
         }
+        else {
+            addLoader("UMF_LINUX");
+        }
         addLoader("ELFMAINZ,FOLDEXEC,IDENTSTR");
     }
     else if (this->e_machine==Elf32_Ehdr::EM_NONE
diff --git a/src/stub/src/arm.v4a-linux.elf-entry.S b/src/stub/src/arm.v4a-linux.elf-entry.S
index 08367dca..ca03d566 100644
--- a/src/stub/src/arm.v4a-linux.elf-entry.S
+++ b/src/stub/src/arm.v4a-linux.elf-entry.S
@@ -271,7 +271,7 @@ f_expand:
 #include "arch/arm/v4a/nrv2b_d8.S"
 
         .balign 4
-upx_mmap_and_fd:
+upx_mmap_and_fd: .globl upx_mmap_and_fd
 // section UMF_LINUX or UMF_ANDROID goes here
 
   section ELFMAINY
diff --git a/src/stub/src/arm.v4a-linux.elf-so_entry.S b/src/stub/src/arm.v4a-linux.elf-so_entry.S
index f35e5ee3..f08099bd 100644
--- a/src/stub/src/arm.v4a-linux.elf-so_entry.S
+++ b/src/stub/src/arm.v4a-linux.elf-so_entry.S
@@ -245,6 +245,8 @@ f_decompress:
 //  MATCH_01  argv
 //  MATCH_07  envp
 
+upx_mmap_and_fd: .globl upx_mmap_and_fd
+
 // IDENTSTR goes here
 
   section ELFMAINZ
diff --git a/src/stub/src/i386-linux.elf-entry.S b/src/stub/src/i386-linux.elf-entry.S
index f95adffe..d59c2a68 100644
--- a/src/stub/src/i386-linux.elf-entry.S
+++ b/src/stub/src/i386-linux.elf-entry.S
@@ -410,8 +410,8 @@ my_bkpt: .globl my_bkpt
         ret
 
         .balign 4
-upx_mmap_and_fd:
-// section UMF_LINUX or UMF_ANDROID goes here
+upx_mmap_and_fd: .globl upx_mmap_and_fd
+        // section UMF_LINUX or UMF_ANDROID goes here
 
   section ELFMAINZ
 L70: