diff --git a/firmware/application/CMakeLists.txt b/firmware/application/CMakeLists.txt
index f4190523..fee94a09 100644
--- a/firmware/application/CMakeLists.txt
+++ b/firmware/application/CMakeLists.txt
@@ -29,7 +29,7 @@ enable_language(C CXX ASM)
 project(application)
 
 # Compiler options here.
-set(USE_OPT "-Os --specs=nano.specs")
+set(USE_OPT "-Os -g --specs=nano.specs")
 
 # C specific options here (added to USE_OPT).
 set(USE_COPT "-std=gnu99")
diff --git a/firmware/baseband/CMakeLists.txt b/firmware/baseband/CMakeLists.txt
index 54010d73..2a8b1b53 100644
--- a/firmware/baseband/CMakeLists.txt
+++ b/firmware/baseband/CMakeLists.txt
@@ -29,7 +29,7 @@ enable_language(C CXX ASM)
 project(baseband_shared)
 
 # Compiler options here.
-set(USE_OPT "-O3 -falign-functions=16 -fno-math-errno --specs=nano.specs")
+set(USE_OPT "-O3 -g -falign-functions=16 -fno-math-errno --specs=nano.specs")
 
 # C specific options here (added to USE_OPT).
 set(USE_COPT "-std=gnu99")
diff --git a/firmware/bootstrap/CMakeLists.txt b/firmware/bootstrap/CMakeLists.txt
index 4c4d5a41..7f837998 100644
--- a/firmware/bootstrap/CMakeLists.txt
+++ b/firmware/bootstrap/CMakeLists.txt
@@ -29,7 +29,7 @@ enable_language(C CXX ASM)
 project(bootstrap)
 
 # Compiler options here.
-set(USE_OPT "-Os -falign-functions=16 -fno-math-errno --specs=nano.specs")
+set(USE_OPT "-Os -g -falign-functions=16 -fno-math-errno --specs=nano.specs")
 
 # C specific options here (added to USE_OPT).
 set(USE_COPT "-std=gnu99")