diff --git a/provider-ci/internal/pkg/templates/bridged-provider/Makefile b/provider-ci/internal/pkg/templates/bridged-provider/Makefile
index d812eac72..70e0ee029 100644
--- a/provider-ci/internal/pkg/templates/bridged-provider/Makefile
+++ b/provider-ci/internal/pkg/templates/bridged-provider/Makefile
@@ -282,3 +282,6 @@ provider_dist-darwin-arm64: bin/$(PROVIDER)-v$(VERSION_GENERIC)-darwin-arm64.tar
 provider_dist-windows-amd64: bin/$(PROVIDER)-v$(VERSION_GENERIC)-windows-amd64.tar.gz
 provider_dist: provider_dist-linux-amd64 provider_dist-linux-arm64 provider_dist-darwin-amd64 provider_dist-darwin-arm64 provider_dist-windows-amd64
 .PHONY: provider_dist-linux-amd64 provider_dist-linux-arm64 provider_dist-darwin-amd64 provider_dist-darwin-arm64 provider_dist-windows-amd64 provider_dist
+
+# Permit providers to extend the Makefile with provider-specific Make includes.
+include $(wildcard .mk/*.mk)
diff --git a/provider-ci/test-providers/acme/Makefile b/provider-ci/test-providers/acme/Makefile
index 1943ffa22..b00f75a97 100644
--- a/provider-ci/test-providers/acme/Makefile
+++ b/provider-ci/test-providers/acme/Makefile
@@ -242,3 +242,6 @@ provider_dist-darwin-arm64: bin/$(PROVIDER)-v$(VERSION_GENERIC)-darwin-arm64.tar
 provider_dist-windows-amd64: bin/$(PROVIDER)-v$(VERSION_GENERIC)-windows-amd64.tar.gz
 provider_dist: provider_dist-linux-amd64 provider_dist-linux-arm64 provider_dist-darwin-amd64 provider_dist-darwin-arm64 provider_dist-windows-amd64
 .PHONY: provider_dist-linux-amd64 provider_dist-linux-arm64 provider_dist-darwin-amd64 provider_dist-darwin-arm64 provider_dist-windows-amd64 provider_dist
+
+# Permit providers to extend the Makefile with provider-specific Make includes.
+include $(wildcard .mk/*.mk)
diff --git a/provider-ci/test-providers/aws/Makefile b/provider-ci/test-providers/aws/Makefile
index b0d4f2753..3cec6ea2e 100644
--- a/provider-ci/test-providers/aws/Makefile
+++ b/provider-ci/test-providers/aws/Makefile
@@ -257,3 +257,6 @@ provider_dist-darwin-arm64: bin/$(PROVIDER)-v$(VERSION_GENERIC)-darwin-arm64.tar
 provider_dist-windows-amd64: bin/$(PROVIDER)-v$(VERSION_GENERIC)-windows-amd64.tar.gz
 provider_dist: provider_dist-linux-amd64 provider_dist-linux-arm64 provider_dist-darwin-amd64 provider_dist-darwin-arm64 provider_dist-windows-amd64
 .PHONY: provider_dist-linux-amd64 provider_dist-linux-arm64 provider_dist-darwin-amd64 provider_dist-darwin-arm64 provider_dist-windows-amd64 provider_dist
+
+# Permit providers to extend the Makefile with provider-specific Make includes.
+include $(wildcard .mk/*.mk)
diff --git a/provider-ci/test-providers/cloudflare/Makefile b/provider-ci/test-providers/cloudflare/Makefile
index 3ffb0b523..d125a6a40 100644
--- a/provider-ci/test-providers/cloudflare/Makefile
+++ b/provider-ci/test-providers/cloudflare/Makefile
@@ -250,3 +250,6 @@ provider_dist-darwin-arm64: bin/$(PROVIDER)-v$(VERSION_GENERIC)-darwin-arm64.tar
 provider_dist-windows-amd64: bin/$(PROVIDER)-v$(VERSION_GENERIC)-windows-amd64.tar.gz
 provider_dist: provider_dist-linux-amd64 provider_dist-linux-arm64 provider_dist-darwin-amd64 provider_dist-darwin-arm64 provider_dist-windows-amd64
 .PHONY: provider_dist-linux-amd64 provider_dist-linux-arm64 provider_dist-darwin-amd64 provider_dist-darwin-arm64 provider_dist-windows-amd64 provider_dist
+
+# Permit providers to extend the Makefile with provider-specific Make includes.
+include $(wildcard .mk/*.mk)
diff --git a/provider-ci/test-providers/docker/Makefile b/provider-ci/test-providers/docker/Makefile
index 6fd51ba99..9da4c00dd 100644
--- a/provider-ci/test-providers/docker/Makefile
+++ b/provider-ci/test-providers/docker/Makefile
@@ -251,3 +251,6 @@ provider_dist-darwin-arm64: bin/$(PROVIDER)-v$(VERSION_GENERIC)-darwin-arm64.tar
 provider_dist-windows-amd64: bin/$(PROVIDER)-v$(VERSION_GENERIC)-windows-amd64.tar.gz
 provider_dist: provider_dist-linux-amd64 provider_dist-linux-arm64 provider_dist-darwin-amd64 provider_dist-darwin-arm64 provider_dist-windows-amd64
 .PHONY: provider_dist-linux-amd64 provider_dist-linux-arm64 provider_dist-darwin-amd64 provider_dist-darwin-arm64 provider_dist-windows-amd64 provider_dist
+
+# Permit providers to extend the Makefile with provider-specific Make includes.
+include $(wildcard .mk/*.mk)