diff --git a/src/gtksourceview.mk b/src/gtksourceview.mk
index a7e8a223..72ab1063 100644
--- a/src/gtksourceview.mk
+++ b/src/gtksourceview.mk
@@ -27,7 +27,7 @@ define $(PKG)_BUILD
         --disable-gtk-doc \
         GLIB_GENMARSHAL='$(PREFIX)/$(TARGET)/bin/glib-genmarshal' \
         GLIB_MKENUMS='$(PREFIX)/$(TARGET)/bin/glib-mkenums' \
-	$(shell [ `uname -s` == Darwin ] && echo "INTLTOOL_PERL=/usr/bin/perl")
+    $(shell [ `uname -s` == Darwin ] && echo "INTLTOOL_PERL=/usr/bin/perl")
     $(MAKE) -C '$(1)' -j '$(JOBS)' bin_PROGRAMS= sbin_PROGRAMS= noinst_PROGRAMS=
     $(MAKE) -C '$(1)' -j 1 install bin_PROGRAMS= sbin_PROGRAMS= noinst_PROGRAMS=
 endef
diff --git a/src/hdf-eos2.mk b/src/hdf-eos2.mk
index 1c450cad..5488e3de 100644
--- a/src/hdf-eos2.mk
+++ b/src/hdf-eos2.mk
@@ -22,9 +22,9 @@ define $(PKG)_BUILD
     cd '$(SOURCE_DIR)' && chmod -R ugo+w .
     cd '$(SOURCE_DIR)' && autoconf
     cd '$(BUILD_DIR)' && '$(SOURCE_DIR)/configure' \
-	    $(MXE_CONFIGURE_OPTS) \
-	    --includedir='$(PREFIX)/$(TARGET)/include/$(PKG)' \
-	    --libdir='$(PREFIX)/$(TARGET)/lib/$(PKG)' \
+        $(MXE_CONFIGURE_OPTS) \
+        --includedir='$(PREFIX)/$(TARGET)/include/$(PKG)' \
+        --libdir='$(PREFIX)/$(TARGET)/lib/$(PKG)' \
         --enable-install-include \
         ac_cv_func_malloc_0_nonnull=yes \
         ac_cv_func_realloc_0_nonnull=yes
diff --git a/src/libgda.mk b/src/libgda.mk
index 2d575bf1..cab00c39 100644
--- a/src/libgda.mk
+++ b/src/libgda.mk
@@ -33,7 +33,7 @@ define $(PKG)_BUILD
         --without-java \
         --enable-binreloc \
         --disable-crypto \
-	$(shell [ `uname -s` == Darwin ] && echo "INTLTOOL_PERL=/usr/bin/perl") \
+    $(shell [ `uname -s` == Darwin ] && echo "INTLTOOL_PERL=/usr/bin/perl") \
         GLIB_GENMARSHAL='$(PREFIX)/$(TARGET)/bin/glib-genmarshal'
     $(MAKE) -C '$(1)' -j '$(JOBS)' bin_PROGRAMS= sbin_PROGRAMS= noinst_PROGRAMS=
     $(MAKE) -C '$(1)' -j 1 install bin_PROGRAMS= sbin_PROGRAMS= noinst_PROGRAMS=
diff --git a/src/libsoup.mk b/src/libsoup.mk
index 4c6c3c17..2429f917 100644
--- a/src/libsoup.mk
+++ b/src/libsoup.mk
@@ -20,7 +20,7 @@ define $(PKG)_BUILD
         --disable-vala \
         --without-apache-httpd \
         --without-gssapi \
-	$(shell [ `uname -s` == Darwin ] && echo "INTLTOOL_PERL=/usr/bin/perl")
+    $(shell [ `uname -s` == Darwin ] && echo "INTLTOOL_PERL=/usr/bin/perl")
     $(MAKE) -C '$(BUILD_DIR)' -j $(JOBS)
     $(MAKE) -C '$(BUILD_DIR)' -j 1 install