diff --git a/dev-ada/gnatmem/gnatmem-2019-r1.ebuild b/dev-ada/gnatmem/gnatmem-2019-r1.ebuild
index 8d03df8f54005..d320637c28c3b 100644
--- a/dev-ada/gnatmem/gnatmem-2019-r1.ebuild
+++ b/dev-ada/gnatmem/gnatmem-2019-r1.ebuild
@@ -3,7 +3,7 @@
 
 EAPI=7
 
-ADA_COMPAT=( gnat_201{7..9} )
+ADA_COMPAT=( gnat_2019 )
 inherit ada multiprocessing autotools
 
 MYP=${P}-20190429-19745-src
diff --git a/dev-ada/gnatmem/gnatmem-2020.ebuild b/dev-ada/gnatmem/gnatmem-2020.ebuild
index 62a7881960d18..2d88a77686a32 100644
--- a/dev-ada/gnatmem/gnatmem-2020.ebuild
+++ b/dev-ada/gnatmem/gnatmem-2020.ebuild
@@ -3,7 +3,7 @@
 
 EAPI=7
 
-ADA_COMPAT=( gnat_201{7..9} gnat_202{0..1} )
+ADA_COMPAT=( gnat_2019 gnat_202{0..1} )
 inherit ada multiprocessing autotools
 
 MYP=${P}-20200429-19911-src
diff --git a/dev-ada/gnatmem/gnatmem-2021.ebuild b/dev-ada/gnatmem/gnatmem-2021.ebuild
index 9bae3b87c458a..8c1cd4d4e6c42 100644
--- a/dev-ada/gnatmem/gnatmem-2021.ebuild
+++ b/dev-ada/gnatmem/gnatmem-2021.ebuild
@@ -3,7 +3,7 @@
 
 EAPI=7
 
-ADA_COMPAT=( gnat_201{7..9} gnat_202{0..1} )
+ADA_COMPAT=( gnat_2019 gnat_202{0..1} )
 inherit ada multiprocessing autotools
 
 MYP=${P}-${PV}0518-19F7B-src