diff --git a/project_generator/templates/cmakelistgccarm.tmpl b/project_generator/templates/cmakelistgccarm.tmpl
index 74075713..ed63d47a 100644
--- a/project_generator/templates/cmakelistgccarm.tmpl
+++ b/project_generator/templates/cmakelistgccarm.tmpl
@@ -25,6 +25,11 @@ set(CMAKE_SYSTEM_PROCESSOR {{core}})
 find_program(ARM_NONE_EABI_GCC arm-none-eabi-gcc)
 find_program(ARM_NONE_EABI_GPP arm-none-eabi-g++)
 find_program(ARM_NONE_EABI_OBJCOPY arm-none-eabi-objcopy)
+if ((ARM_NONE_EABI_GCC MATCHES ".*-NOTFOUND") OR
+    (ARM_NONE_EABI_GPP MATCHES ".*-NOTFOUND") OR
+    (ARM_NONE_EABI_OBJCOPY MATCHES ".*-NOTFOUND"))
+    MESSAGE(FATAL_ERROR "Could not find the arm-none-eabi gnu toolchain")
+endif()
 
 cmake_force_c_compiler("${ARM_NONE_EABI_GCC}" GNU)
 cmake_force_cxx_compiler("${ARM_NONE_EABI_GPP}" GNU)