diff --git a/kde-apps/cantor/cantor-16.12.2.ebuild b/kde-apps/cantor/cantor-16.12.2.ebuild
index 96540cab7f5c2..a1f359a35ede3 100644
--- a/kde-apps/cantor/cantor-16.12.2.ebuild
+++ b/kde-apps/cantor/cantor-16.12.2.ebuild
@@ -56,6 +56,8 @@ RDEPEND="${RDEPEND}"
 
 RESTRICT+=" test"
 
+PATCHES=( "${FILESDIR}"/${P}-bashism.patch )
+
 pkg_pretend() {
 	kde5_pkg_pretend
 
diff --git a/kde-apps/cantor/files/cantor-16.12.2-bashism.patch b/kde-apps/cantor/files/cantor-16.12.2-bashism.patch
new file mode 100644
index 0000000000000..424ca4d15aa47
--- /dev/null
+++ b/kde-apps/cantor/files/cantor-16.12.2-bashism.patch
@@ -0,0 +1,13 @@
+diff --git a/cmake/FindR.cmake b/cmake/FindR.cmake
+index 6303417..6494884 100644
+--- a/cmake/FindR.cmake
++++ b/cmake/FindR.cmake
+@@ -31,7 +31,7 @@ IF(R_EXECUTABLE)
+         OUTPUT_VARIABLE R_INCLUDE_DIR)
+     ELSE(WIN32)
+       EXECUTE_PROCESS(
+-        COMMAND ${R_EXECUTABLE} CMD sh -c "echo -n $R_INCLUDE_DIR"
++        COMMAND ${R_EXECUTABLE} CMD sh -c "printf $R_INCLUDE_DIR"
+         OUTPUT_VARIABLE R_INCLUDE_DIR)
+     ENDIF(WIN32)
+   ENDIF(NOT R_INCLUDE_DIR)