diff --git a/make/makefile b/make/makefile
index 8013b41..53460a3 100644
--- a/make/makefile
+++ b/make/makefile
@@ -10,7 +10,7 @@ REMOVE_FORCE_ALL = $(RM) --recursive --dir
 export OSCAR64_CC = $(project_dir)/bin/oscar64
 export OSCAR64_CFLAGS =
 export OSCAR64_CXX = $(project_dir)/bin/oscar64
-MKDIR_PARENT = /usr/bin/mkdir --parents --mode=755
+MKDIR_PARENT = /bin/mkdir --parents --mode=755
 INSTALL = /usr/bin/install
 INSTALL_PROGRAM = $(INSTALL) --mode=755
 INSTALL_DATA = $(INSTALL) --mode=644
@@ -120,5 +120,5 @@ endif
 
 
 --prep-build-dir:
-	@if [[ ! -d $(srcdir) ]]; then $(MKDIR_PARENT) $(srcdir); fi
-	@if [[ ! -d $(project_dir)/bin ]]; then $(MKDIR_PARENT)  $(project_dir)/bin; fi
+	@if [ ! -d $(srcdir) ]; then $(MKDIR_PARENT) $(srcdir); fi
+	@if [ ! -d $(project_dir)/bin ]; then $(MKDIR_PARENT)  $(project_dir)/bin; fi