diff --git a/Src/Base/AMReX_Extension.H b/Src/Base/AMReX_Extension.H
index c02adcdff7e..8a77defed80 100644
--- a/Src/Base/AMReX_Extension.H
+++ b/Src/Base/AMReX_Extension.H
@@ -138,9 +138,9 @@
 #define AMREX_TO_STRING(X)          AMREX_TO_STRING_HELPER(X)
 
 #if defined(__clang__) || defined(__CUDACC__) || defined(__HIP__) || defined(__INTEL_CLANG_COMPILER)
-#define AMREX_UNROLL_LOOP(n)  _Pragma(AMREX_TO_STRING(unroll (n)))
+#define AMREX_UNROLL_LOOP(n)  _Pragma(AMREX_TO_STRING(unroll n))
 #elif defined(__GNUC__)
-#define AMREX_UNROLL_LOOP(n)  _Pragma(AMREX_TO_STRING(GCC unroll (n)))
+#define AMREX_UNROLL_LOOP(n)  _Pragma(AMREX_TO_STRING(GCC unroll n))
 #else
 #define AMREX_UNROLL_LOOP(n)
 #endif