diff --git a/tools/cooja/config/external_tools_freebsd.config b/tools/cooja/config/external_tools_freebsd.config
index b56586733..b0564ec31 100644
--- a/tools/cooja/config/external_tools_freebsd.config
+++ b/tools/cooja/config/external_tools_freebsd.config
@@ -6,6 +6,7 @@ PATH_AR = ar
 PATH_SHELL = sh
 PATH_C_COMPILER = gcc
 PATH_OBJDUMP=objdump
+PATH_OBJCOPY=objcopy
 OBJDUMP_ARGS=-h
 CMD_GREP_PROCESSES = grep "^PROCESS_THREAD[ ]*([^,]*,[^,]*,[^)]*)" -o -H
 REGEXP_PARSE_PROCESSES = ([^/]*.c):PROCESS_THREAD[ ]*\\(([^,]*),[^,]*,[^)]*\\)
diff --git a/tools/cooja/config/external_tools_linux.config b/tools/cooja/config/external_tools_linux.config
index 9338eebb1..8e433b543 100644
--- a/tools/cooja/config/external_tools_linux.config
+++ b/tools/cooja/config/external_tools_linux.config
@@ -6,6 +6,7 @@ PATH_AR = ar
 PATH_SHELL = sh
 PATH_C_COMPILER = gcc
 PATH_OBJDUMP=objdump
+PATH_OBJCOPY=objcopy
 OBJDUMP_ARGS=-h
 CMD_GREP_PROCESSES = grep "^PROCESS_THREAD[ ]*([^,]*,[^,]*,[^)]*)" -o -H
 REGEXP_PARSE_PROCESSES = ([^/]*.c):PROCESS_THREAD[ ]*\\(([^,]*),[^,]*,[^)]*\\)
diff --git a/tools/cooja/config/external_tools_linux_64.config b/tools/cooja/config/external_tools_linux_64.config
index 034498805..7609ca905 100644
--- a/tools/cooja/config/external_tools_linux_64.config
+++ b/tools/cooja/config/external_tools_linux_64.config
@@ -6,6 +6,7 @@ PATH_AR = ar
 PATH_SHELL = sh
 PATH_C_COMPILER = gcc
 PATH_OBJDUMP=objdump
+PATH_OBJCOPY=objcopy
 OBJDUMP_ARGS=-h
 CMD_GREP_PROCESSES = grep "^PROCESS_THREAD[ ]*([^,]*,[^,]*,[^)]*)" -o -H
 REGEXP_PARSE_PROCESSES = ([^/]*.c):PROCESS_THREAD[ ]*\\(([^,]*),[^,]*,[^)]*\\)
diff --git a/tools/cooja/config/external_tools_macosx.config b/tools/cooja/config/external_tools_macosx.config
index 3410dfed4..f15ba75da 100644
--- a/tools/cooja/config/external_tools_macosx.config
+++ b/tools/cooja/config/external_tools_macosx.config
@@ -6,6 +6,7 @@ PATH_AR = ar
 PATH_SHELL = sh
 PATH_C_COMPILER = gcc
 PATH_OBJDUMP= objdump
+PATH_OBJCOPY=objcopy
 OBJDUMP_ARGS= -h
 CMD_GREP_PROCESSES = grep "^PROCESS_THREAD[ ]*([^,]*,[^,]*,[^)]*)" -o -H
 REGEXP_PARSE_PROCESSES = ([^/]*.c):PROCESS_THREAD[ ]*\\(([^,]*),[^,]*,[^)]*\\)