diff --git a/chalk/colorspaces/cmyk_u16/Makefile.am b/chalk/colorspaces/cmyk_u16/Makefile.am
index e499b1eda..457f3c51b 100644
--- a/chalk/colorspaces/cmyk_u16/Makefile.am
+++ b/chalk/colorspaces/cmyk_u16/Makefile.am
@@ -28,3 +28,4 @@ chalk_cmyk_u16_plugin_la_METASOURCES = AUTO
 SUBDIRS = .
 #$(TESTSDIR)
 
+.NOTPARALLEL:
diff --git a/chalk/colorspaces/gray_u8/Makefile.am b/chalk/colorspaces/gray_u8/Makefile.am
index d55084ffc..9f4352665 100644
--- a/chalk/colorspaces/gray_u8/Makefile.am
+++ b/chalk/colorspaces/gray_u8/Makefile.am
@@ -29,3 +29,4 @@ endif
 
 SUBDIRS = . templates $(TESTSDIR)
 
+.NOTPARALLEL:
diff --git a/chalk/colorspaces/lms_f32/Makefile.am b/chalk/colorspaces/lms_f32/Makefile.am
index 611bfc727..9e5d02cf1 100644
--- a/chalk/colorspaces/lms_f32/Makefile.am
+++ b/chalk/colorspaces/lms_f32/Makefile.am
@@ -26,3 +26,4 @@ chalk_lms_f32_plugin_la_LIBADD =  libchalk_lms_f32.la ../../chalkcolor/libchalkc
 
 chalk_lms_f32_plugin_la_METASOURCES = AUTO
 
+.NOTPARALLEL:
diff --git a/chalk/colorspaces/rgb_f16half/Makefile.am b/chalk/colorspaces/rgb_f16half/Makefile.am
index 5ff88e688..8f88e632e 100644
--- a/chalk/colorspaces/rgb_f16half/Makefile.am
+++ b/chalk/colorspaces/rgb_f16half/Makefile.am
@@ -35,3 +35,4 @@ endif
 
 SUBDIRS = . $(TESTSDIR)
 
+.NOTPARALLEL:
diff --git a/chalk/colorspaces/rgb_f32/Makefile.am b/chalk/colorspaces/rgb_f32/Makefile.am
index 112253b7b..1632d78e1 100644
--- a/chalk/colorspaces/rgb_f32/Makefile.am
+++ b/chalk/colorspaces/rgb_f32/Makefile.am
@@ -32,3 +32,4 @@ endif
 
 SUBDIRS = . $(TESTSDIR)
 
+.NOTPARALLEL:
diff --git a/chalk/colorspaces/rgb_u16/Makefile.am b/chalk/colorspaces/rgb_u16/Makefile.am
index c283682b1..a0987b148 100644
--- a/chalk/colorspaces/rgb_u16/Makefile.am
+++ b/chalk/colorspaces/rgb_u16/Makefile.am
@@ -30,3 +30,4 @@ endif
 
 SUBDIRS = . $(TESTSDIR)
 
+.NOTPARALLEL:
diff --git a/chalk/colorspaces/ycbcr_u16/Makefile.am b/chalk/colorspaces/ycbcr_u16/Makefile.am
index 75e0686b4..994fb478f 100644
--- a/chalk/colorspaces/ycbcr_u16/Makefile.am
+++ b/chalk/colorspaces/ycbcr_u16/Makefile.am
@@ -25,3 +25,5 @@ chalk_ycbcr_u16_plugin_la_LIBADD =  libchalk_ycbcr_u16.la ../../chalkcolor/libch
 METASOURCES = AUTO
 
 libchalk_ycbcr_u16_la_SOURCES = kis_ycbcr_u16_colorspace.cc
+
+.NOTPARALLEL:
diff --git a/chalk/colorspaces/ycbcr_u8/Makefile.am b/chalk/colorspaces/ycbcr_u8/Makefile.am
index 02b879450..5d496e78c 100644
--- a/chalk/colorspaces/ycbcr_u8/Makefile.am
+++ b/chalk/colorspaces/ycbcr_u8/Makefile.am
@@ -27,3 +27,5 @@ METASOURCES = AUTO
 
 libchalk_ycbcr_u8_la_SOURCES = kis_ycbcr_u8_colorspace.cc
 kde_services_DATA = chalk_ycbcr_u8_plugin.desktop
+
+.NOTPARALLEL: