diff --git a/USAGE.md b/USAGE.md
index 8f2f31ed..6c173b33 100755
--- a/USAGE.md
+++ b/USAGE.md
@@ -44,3 +44,6 @@ Only on build with trace enabled.
 * 0 : Default, the XMM (i.e. SSE/SSE2) register will not be logged with the general and x87 registers
 * 1 : Dump the XMM registers
 
+#### BOX86_LOAD_ADDR
+Try to load at 0xXXXXXX main binaray (if binary is a PIE)
+* 0xXXXXXXXX the load address (only active on PIE programs)
\ No newline at end of file
diff --git a/src/elfloader.c b/src/elfloader.c
index 8da520e6..bca6e85e 100755
--- a/src/elfloader.c
+++ b/src/elfloader.c
@@ -84,34 +84,29 @@ const char* ElfName(elfheader_t* head)
     return head->name;
 }
 
-int AllocElfMemory(elfheader_t* head)
+int AllocElfMemory(elfheader_t* head, int mainbin)
 {
-    #if 0
-    printf_log(LOG_DEBUG, "Allocating memory for Elf \"%s\"\n", head->name);
-    if (posix_memalign((void**)&head->memory, head->align, head->memsz)) {
-        printf_log(LOG_NONE, "Cannot allocate aligned memory (0x%x/0x%x) for elf \"%s\"\n", head->memsz, head->align, head->name);
-        return 1;
+    uintptr_t offs = 0;
+    if(mainbin && head->vaddr==0) {
+        char* load_addr = getenv("BOX86_LOAD_ADDR");
+        if(load_addr)
+            if(sscanf(load_addr, "0x%x", &offs)!=1)
+                offs = 0;
     }
-    printf_log(LOG_DEBUG, "Address is %p\n", head->memory);
-    printf_log(LOG_DEBUG, "And setting memory access to PROT_READ | PROT_WRITE | PROT_EXEC\n");
-    if (mprotect(head->memory, head->memsz, PROT_READ | PROT_WRITE | PROT_EXEC)) {
-        printf_log(LOG_NONE, "Cannot protect memory for elf \"%s\"\n", head->name);
-        // memory protect error not fatal for now....
-    }
-    #else
-    printf_log(LOG_DEBUG, "Allocating 0x%x memory @%p for Elf \"%s\"\n", head->memsz, (void*)head->vaddr, head->name);
-    void* p = mmap((void*)head->vaddr, head->memsz
-        , PROT_READ | PROT_WRITE | PROT_EXEC, MAP_SHARED | MAP_ANONYMOUS | ((head->vaddr)?MAP_FIXED:0)
+    if(!offs)
+        offs = head->vaddr;
+    printf_log(LOG_DEBUG, "Allocating 0x%x memory @%p for Elf \"%s\"\n", head->memsz, (void*)offs, head->name);
+    void* p = mmap((void*)offs, head->memsz
+        , PROT_READ | PROT_WRITE | PROT_EXEC, MAP_SHARED | MAP_ANONYMOUS | ((offs)?MAP_FIXED:0)
         , -1, 0);
     if(p==MAP_FAILED) {
-        printf_log(LOG_NONE, "Cannot create memory map (@%p 0x%x/0x%x) for elf \"%s\"\n", (void*)head->vaddr, head->memsz, head->align, head->name);
+        printf_log(LOG_NONE, "Cannot create memory map (@%p 0x%x/0x%x) for elf \"%s\"\n", (void*)offs, head->memsz, head->align, head->name);
         return 1;
     }
     head->memory = p;
     memset(p, 0, head->memsz);
     head->delta = (intptr_t)p - (intptr_t)head->vaddr;
     printf_log(LOG_DEBUG, "Got %p (delta=%p)\n", p, (void*)head->delta);
-    #endif
 
     return 0;
 }
diff --git a/src/elfloader.h b/src/elfloader.h
index 893f240c..c96ca089 100755
--- a/src/elfloader.h
+++ b/src/elfloader.h
@@ -14,7 +14,7 @@ const char* ElfName(elfheader_t* head);
 
 // return 0 if OK
 int CalcLoadAddr(elfheader_t* head);
-int AllocElfMemory(elfheader_t* head);
+int AllocElfMemory(elfheader_t* head, int mainbin);
 void FreeElfMemory(elfheader_t* head);
 int LoadElfMemory(FILE* f, elfheader_t* head);
 int RelocateElf(lib_t *maplib, elfheader_t* head);
diff --git a/src/library.c b/src/library.c
index 3d9cb376..4ee4b782 100755
--- a/src/library.c
+++ b/src/library.c
@@ -194,7 +194,7 @@ library_t *NewLibrary(const char* path, box86context_t* context)
                 return NULL;
             }
             // allocate memory
-            if(AllocElfMemory(elf_header)) {
+            if(AllocElfMemory(elf_header, 0)) {
                 printf_log(LOG_NONE, "Error: allocating memory for elf %s\n", libname);
                 fclose(f);
                 return NULL;
diff --git a/src/main.c b/src/main.c
index 4ff2a454..21c16ce2 100755
--- a/src/main.c
+++ b/src/main.c
@@ -166,6 +166,7 @@ void PrintHelp() {
 #endif
     printf(" BOX86_TRACE_FILE with FileName to redirect logs in a file");
     printf(" BOX86_DLSYM_ERROR with 1 to log dlsym errors\n");
+    printf(" BOX86_LOAD_ADDR=0xXXXXXX try to load at 0xXXXXXX main binaray (if binary is a PIE)\n");
 }
 
 int main(int argc, const char **argv, const char **env) {
@@ -284,7 +285,7 @@ int main(int argc, const char **argv, const char **env) {
         return -1;
     }
     // allocate memory
-    if(AllocElfMemory(elf_header)) {
+    if(AllocElfMemory(elf_header, 1)) {
         printf_log(LOG_NONE, "Error: allocating memory for elf %s\n", context->argv[0]);
         fclose(f);
         FreeBox86Context(&context);