diff --git a/ledger_device_sdk/flex.json b/ledger_device_sdk/flex.json
index af01a46e..d8047d3c 100644
--- a/ledger_device_sdk/flex.json
+++ b/ledger_device_sdk/flex.json
@@ -9,6 +9,7 @@
   "linker": "link_wrap.sh",
   "linker-flavor": "ld.lld",
   "llvm-target": "thumbv8m.main-none-eabi",
+  "llvm-floatabi": "soft",
   "max-atomic-width": 32,
   "panic-strategy": "abort",
   "pre-link-args": {
diff --git a/ledger_device_sdk/nanosplus.json b/ledger_device_sdk/nanosplus.json
index 5f3d2030..f54624b6 100644
--- a/ledger_device_sdk/nanosplus.json
+++ b/ledger_device_sdk/nanosplus.json
@@ -9,6 +9,7 @@
   "linker": "link_wrap.sh",
   "linker-flavor": "ld.lld",
   "llvm-target": "thumbv8m.main-none-eabi",
+  "llvm-floatabi": "soft",
   "max-atomic-width": 32,
   "panic-strategy": "abort",
   "pre-link-args": {
diff --git a/ledger_device_sdk/nanox.json b/ledger_device_sdk/nanox.json
index 245672ec..4dc73e04 100644
--- a/ledger_device_sdk/nanox.json
+++ b/ledger_device_sdk/nanox.json
@@ -10,6 +10,7 @@
   "linker": "link_wrap.sh",
   "linker-flavor": "ld.lld",
   "llvm-target": "thumbv6m-none-eabi",
+  "llvm-floatabi": "float",
   "panic-strategy": "abort",
   "pre-link-args": {
     "ld.lld": [
diff --git a/ledger_device_sdk/stax.json b/ledger_device_sdk/stax.json
index c39cd3d0..a5fdb0f2 100644
--- a/ledger_device_sdk/stax.json
+++ b/ledger_device_sdk/stax.json
@@ -9,6 +9,7 @@
   "linker": "link_wrap.sh",
   "linker-flavor": "ld.lld",
   "llvm-target": "thumbv8m.main-none-eabi",
+  "llvm-floatabi": "soft",
   "max-atomic-width": 32,
   "panic-strategy": "abort",
   "pre-link-args": {