diff --git a/index/li/libsdl2/libsdl2-external.toml b/index/li/libsdl2/libsdl2-external.toml
index 4edef797..494280c9 100644
--- a/index/li/libsdl2/libsdl2-external.toml
+++ b/index/li/libsdl2/libsdl2-external.toml
@@ -6,5 +6,6 @@ maintainers-logins = ["mosteo"]
 
 [[external]]
 kind = "system"
-[external.origin."case(distribution)"]
-"debian|ubuntu" = ["libsdl2-dev"]
+    [external.origin.'case(distribution)']
+    'debian|ubuntu' = ["libsdl2-dev"]
+    'msys2' = ["mingw-w64-x86_64-SDL2"]
diff --git a/index/li/libsdl2_image/libsdl2_image-external.toml b/index/li/libsdl2_image/libsdl2_image-external.toml
index 30fbcdd2..ad04648d 100644
--- a/index/li/libsdl2_image/libsdl2_image-external.toml
+++ b/index/li/libsdl2_image/libsdl2_image-external.toml
@@ -6,5 +6,6 @@ maintainers-logins = ["mosteo"]
 
 [[external]]
 kind = "system"
-[external.origin."case(distribution)"]
-"debian|ubuntu" = ["libsdl2-image-dev"]
+    [external.origin.'case(distribution)']
+    'debian|ubuntu' = ["libsdl2-image-dev"]
+    'msys2' = ["mingw-w64-x86_64-SDL2_image"]
diff --git a/index/li/libsdl2_ttf/libsdl2_ttf-external.toml b/index/li/libsdl2_ttf/libsdl2_ttf-external.toml
index 01a28a1f..404c18b3 100644
--- a/index/li/libsdl2_ttf/libsdl2_ttf-external.toml
+++ b/index/li/libsdl2_ttf/libsdl2_ttf-external.toml
@@ -6,5 +6,6 @@ maintainers-logins = ["mosteo"]
 
 [[external]]
 kind = "system"
-[external.origin."case(distribution)"]
-"debian|ubuntu" = ["libsdl2-ttf-dev"]
+    [external.origin.'case(distribution)']
+    'debian|ubuntu' = ["libsdl2-ttf-dev"]
+    'msys2' = ["mingw-w64-x86_64-SDL2_ttf"]
diff --git a/index/sd/sdlada/sdlada-2.3.1.toml b/index/sd/sdlada/sdlada-2.3.1.toml
index 6bfdadbf..2bacc21d 100644
--- a/index/sd/sdlada/sdlada-2.3.1.toml
+++ b/index/sd/sdlada/sdlada-2.3.1.toml
@@ -24,11 +24,12 @@ command = ["make", "-C", "build/gnat", "SDL_PLATFORM=macosx", "SDL_MODE=release"
 [[actions."case(os)".windows]]
 type = "post-fetch"
 command = ["make", "-C", "build/gnat", "SDL_PLATFORM=windows", "SDL_MODE=release"]
+
 [available."case(os)"]
-"..." = false
 linux = true
 macos = true
 windows = true
+"..." = false
 
 [gpr-externals]
 SDL_MODE = ["debug", "release"]
@@ -39,6 +40,11 @@ SDL_MODE = "release"
 [gpr-set-externals."case(os)".linux]
 SDL_PLATFORM = "linux"
 
+[environment.'case(distribution)']
+# sdlada expects SDL2 headers to be in the C_INCLUDE_PATH but the option
+# used in the project file ("-I/usr/include/SDL2") doesn't work with msys2
+msys2 = { C_INCLUDE_PATH.append = "${DISTRIB_ROOT}/mingw64/include/SDL2" }
+
 [origin]
 url = "https://github.com/Lucretia/sdlada/archive/v2.3.1.tar.gz"
 hashes = ["sha512:786a047fd74f5105eef9d8b3f1ad082b915339cf9da4a2c32f7789dc12005acb2999301e616a67ec0b2a4c084586e812f8d6343dbd33d8bd165ba58a94db16e3"]