diff --git a/subsys/llext/Kconfig b/subsys/llext/Kconfig
index 9fec16cb230..b1210b8f2e8 100644
--- a/subsys/llext/Kconfig
+++ b/subsys/llext/Kconfig
@@ -27,6 +27,12 @@ config LLEXT_SHELL_MAX_SIZE
 	help
 	  When loading llext with shell it is stored in a temporary buffer of this size
 
+config LLEXT_STORAGE_WRITABLE
+	bool "llext storage is writable"
+	help
+	  Select if LLEXT storage is writable, i.e. if extensions are stored in
+	  RAM and can be modified in place
+
 module = LLEXT
 module-str = llext
 source "subsys/logging/Kconfig.template.log_config"
diff --git a/subsys/llext/llext.c b/subsys/llext/llext.c
index 1bc56f4d23b..77a741f0636 100644
--- a/subsys/llext/llext.c
+++ b/subsys/llext/llext.c
@@ -303,7 +303,8 @@ static int llext_copy_section(struct llext_loader *ldr, struct llext *ext,
 		return 0;
 	}
 
-	if (ldr->sects[sect_idx].sh_type != SHT_NOBITS) {
+	if (ldr->sects[sect_idx].sh_type != SHT_NOBITS &&
+	    IS_ENABLED(CONFIG_LLEXT_STORAGE_WRITABLE)) {
 		ext->mem[mem_idx] = llext_peek(ldr, ldr->sects[sect_idx].sh_offset);
 		if (ext->mem[mem_idx]) {
 			ext->mem_on_heap[mem_idx] = false;
diff --git a/tests/subsys/llext/src/test_llext_simple.c b/tests/subsys/llext/src/test_llext_simple.c
index 28a51a092b2..b78f2809009 100644
--- a/tests/subsys/llext/src/test_llext_simple.c
+++ b/tests/subsys/llext/src/test_llext_simple.c
@@ -10,7 +10,10 @@
 #include <zephyr/llext/buf_loader.h>
 
 #if defined(CONFIG_ARM) /* ARMV7 */ || defined(CONFIG_XTENSA)
-const static uint8_t hello_world_elf[] __aligned(4) = {
+#ifndef CONFIG_LLEXT_STORAGE_WRITABLE
+const
+#endif
+static uint8_t hello_world_elf[] __aligned(4) = {
 #include "hello_world.inc"
 };
 #endif
diff --git a/tests/subsys/llext/testcase.yaml b/tests/subsys/llext/testcase.yaml
index 0bbccd5e1ca..2747edf8d0c 100644
--- a/tests/subsys/llext/testcase.yaml
+++ b/tests/subsys/llext/testcase.yaml
@@ -11,6 +11,8 @@ tests:
       - nuvoton_pfm_m487 # See #63167
   llext.simple.xtensa:
     arch_allow: xtensa
+    extra_configs:
+      - CONFIG_LLEXT_STORAGE_WRITABLE=y
     # Broken platforms
     platform_exclude:
       - qemu_xtensa_mmu # ELF sections are read-only, and without peek() .text copy isn't executable