diff --git a/config/cmake/ConfigureChecks.cmake b/config/cmake/ConfigureChecks.cmake
index 81b512c8a4b..bb37f2a8129 100644
--- a/config/cmake/ConfigureChecks.cmake
+++ b/config/cmake/ConfigureChecks.cmake
@@ -136,12 +136,12 @@ endif ()
 # check for that. This is only used by the build system and doesn't need
 # to be exported to H5pubconf.h.
 CHECK_INCLUDE_FILES("quadmath.h" INCLUDE_QUADMATH_H)
-  # Convert TRUE/FALSE to 0/1 for preprocessor values in test code, below
-  if (${INCLUDE_QUADMATH_H})
-    set(C_INCLUDE_QUADMATH_H 1)
-  else ()
-    set(C_INCLUDE_QUADMATH_H 0)
-  endif ()
+# Convert TRUE/FALSE to 0/1 for preprocessor values in test code, below
+if (${INCLUDE_QUADMATH_H})
+  set(C_INCLUDE_QUADMATH_H 1)
+else ()
+  set(C_INCLUDE_QUADMATH_H 0)
+endif ()
 
 if (CYGWIN)
   set (CMAKE_REQUIRED_DEFINITIONS "${CMAKE_REQUIRED_DEFINITIONS} -D_GNU_SOURCE")