diff --git a/browser/devtools/styleeditor/Makefile.in b/browser/devtools/styleeditor/Makefile.in
index f49fa5a32e0b..5dc39453e206 100644
--- a/browser/devtools/styleeditor/Makefile.in
+++ b/browser/devtools/styleeditor/Makefile.in
@@ -43,9 +43,7 @@ VPATH		= @srcdir@
 include $(DEPTH)/config/autoconf.mk
 
 ifdef ENABLE_TESTS
-  ifneq (mobile,$(MOZ_BUILD_APP))
-  	  DIRS += test
-  endif
+DIRS += test
 endif
 
 include $(topsrcdir)/config/rules.mk
diff --git a/browser/devtools/styleinspector/Makefile.in b/browser/devtools/styleinspector/Makefile.in
index 626dab7d87fc..fad7c4d449fc 100644
--- a/browser/devtools/styleinspector/Makefile.in
+++ b/browser/devtools/styleinspector/Makefile.in
@@ -44,10 +44,8 @@ VPATH		= @srcdir@
 include $(DEPTH)/config/autoconf.mk
 
 ifdef ENABLE_TESTS
-ifneq (mobile,$(MOZ_BUILD_APP))
 DIRS += test/browser
 endif
-endif
 
 include $(topsrcdir)/config/rules.mk
 
diff --git a/browser/devtools/webconsole/Makefile.in b/browser/devtools/webconsole/Makefile.in
index ab625acaf907..498c329d5a14 100644
--- a/browser/devtools/webconsole/Makefile.in
+++ b/browser/devtools/webconsole/Makefile.in
@@ -57,9 +57,7 @@ EXTRA_PP_JS_MODULES = \
 		$(NULL)
 
 ifdef ENABLE_TESTS
-ifneq (mobile,$(MOZ_BUILD_APP))
 DIRS += test/browser
 endif
-endif
 
 include $(topsrcdir)/config/rules.mk